The 7 best biotin supplements, reviewed by a registered dietitian

Commonly known as the “beauty” vitamin, biotin, or vitamin B7, is a water-soluble member of the B-complex vitamins. Aside from its purported benefits for skin and hair, it also plays an important role in energy metabolism, helping our bodies convert the food we consume into energy. Some people may benefit from taking a biotin supplement or

a multivitamin

with biotin. A few signs of a biotin deficiency include rash, brittle nails, and thinning hair. (

1

)

Biotin supplements vary widely, often including vitamins like vitamin C or even proteins like collagen, so our team searched the market to find the top contenders so you can make an informed choice before checkout. We selected these seven biotin supplements due to their clean ingredients, rigorous testing, and overall value.

Editor’s choice

Nutricost Biotin for Women

with Folate and Marine Collagen


is our number one pick for the best overall biotin supplement. This high-dose supplement contains 10,000 micrograms (mcg) per capsule and includes folate and marine collagen, which may also contribute to healthy hair, skin, and nails.


Medical disclaimer: This article is intended for educational and informational purposes only. It is not intended as a substitute for medical advice. For health advice, contact a licensed healthcare provider.

Our picks for the best biotin supplement

Compare biotin supplements

the nutricost biotin for women 10,000 mcg supplement against a white background

Best biotin for hair growth

the nutricost biotin for women 10,000 mcg supplement against a white background

Nutricost Biotin for Women contains a high amount of biotin along with other important nutrients like folate and marine collagen.

Key product features



Icon Supplement Bottles


Form


Capsule

Icon Insurance Accepted


Third-party testing


Yes

Icon Third Party Testing


GMP-certified


Yes

Icon Warranty


Guarantee


60 days

What you should know




Featuring ingredients like folate and marine collagen, Nutricost Biotin for Women with Folate and Marine Collagen provides the most bang for your buck when looking to improve hair health through biotin supplementation.


  • This supplement packs the highest dose of biotin, at 10,000 micrograms (mcg) per capsule, compared to all the others we examined.

  • At $0.12 a serving, this is the most inexpensive option on our list.

  • This unique formula contains folate and marine collagen, both of which are nutrients involved in skin and hair health. Thus, it may be a good choice for anyone seeking improvements in those areas.

Pros



Contains added nutrients such as folate and collagen



Most inexpensive at $0.12/serving



60-day money-back guarantee

Cons



Not suitable for vegetarians or vegans as it contains fish



High dose may cause stomach upset



Contains fillers including rice flour and hypromellose

Why we like Nutricost Biotin for Women as best for hair growth

Nutricost’s high-dose biotin supplement is expertly crafted to support the health of your hair, skin, and nails. It outperforms competitors by delivering a high potency dose of 10,000 mcg of biotin. Additionally, it includes 333 mcg of folate and 100 mg of marine collagen, further enriching its formula to provide comprehensive benefits. While this product is marketed towards women, the ingredients and doses will also benefit men looking to support their hair growth.

This unique blend may help those with weakened hair growth and dermatological issues. Research indicates that people with biotin deficiencies usually experience improvements in their skin, hair, and nails once they begin supplementing and restore their biotin levels to normal. Those with inherited deficiencies often need high doses, starting at 10,000 mcg daily, to see improvements in hair and nail growth. Therefore, this high-dose biotin supplement might be particularly effective for individuals looking to improve the health of their hair, skin, and nails.

Biotin is considered safe at high doses, as no upper intake level has been established due to its low toxicity. However, there’s no evidence supporting its use in healthy individuals who are not deficient. (

2

,

3

) It’s important to keep in mind that it will take a couple months of biotin supplementation to start showing improvements.

Folate also helps maintain healthy cells. Deficiency can lead to hair, skin, and nail changes. Folate is especially important for women who are trying to conceive, as deficiency can lead to neural tube defects. (

4

)

Additionally, the 100 mg of marine collagen may have anti-aging effects by improving skin elasticity, moisture and structure. Keep in mind, this product is not suitable for vegetarians or vegans since its collagen comes from animal sources. (

5

)

Nutricost Biotin for Women is third-party tested by ISO Labs and made in a facility that meets FDA standards and is Good Manufacturing Practices (GMP) certified, so you can trust that you are getting exactly what’s on the label.

This biotin supplement is also only $0.12 a serving, making it the most affordable option on our list.

What customers are saying

Amazon customers love this biotin supplement, giving it an average rating of 4.5 out of 5 stars from over 230 reviews. They say it works wonders for healthy hair, skin, and nails and appreciate the fair price.

“In just 5 weeks, I could see a difference in health and thickness of my hair! I even had it cut in that 5 week period! My nails are a little stronger but the biggest difference is the hair!!”

Gustavo V, verified Amazon customer

Another Amazon customer, Lotus, states, “Had massive hair loss after getting sick in 2021. I have always had long hair so the amount of hair loss was a shock. I always had thin fine hair so it was especially traumatic when it fell out. I started taking this in early 2022 and have taken it religiously up to now. My hair has grown back almost to full length, and it is thicker than it has ever been in my life. It is also growing ridiculously fast. My eyebrows have also grown in thick as well. My nails no longer split. If you give up 3 months in, you won’t see much benefit. Hair takes time to grow. And each hair is on its own growth cycle. You must give it at least 6 months before you will see a noticeable change.”

However, some reviewers claimed it made them feel sick due to the high dose.

“These are way too strong and I got very sick so wasted the money on these,” says Amazon customer, Dee65.

Specs


Form
Capsule

Dose
10,000 mcg

Key ingredients
Biotin, folate, marine collagen

Serving size
1 daily

Quantity
120 capsules

Price per serving
$0.12

Third-party testing
ISO Labs

the sunergetic blood sugar support supplement against a white background

Best biotin supplement for men

the sunergetic blood sugar support supplement against a white background

Sunergetic Blood Sugar Support combines biotin with vitamins and herbs, which may help support healthy blood sugar.

Key product features



Icon Supplement Bottles


Form


Capsule

Icon Upper Body V2


May support


Blood sugar

Icon Third Party Testing


GMP-certification


Yes

Icon Warranty


Guarantee


365 days

What you should know




Sunergetic Premium Blood Sugar Support is designed to keep already healthy blood sugar levels in check by combining biotin with several other vitamins and herbs.


  • This supplement contains 600 mcg of biotin, along with 15 other vitamins and herbs to help maintain healthy glucose metabolism.

  • Sunergetic’s price point is middle of the road at $0.67 per serving.
  • This product contains a long list of vitamins, minerals and herbal supplements, including GlucoHelp® and clinically studied Crominex3+, which may improve symptoms of metabolic syndrome, including blood sugar. Because the ingredient list is long, be sure to check with your healthcare provider for any potential complications before purchase. (

    6

    )

Pros



Moderately priced at $0.67 per serving 365 day money-back guarantee



Includes 15 other vitamins



Supports healthy blood glucose levels

Cons



May not be appropriate for everyone since it can interfere with blood sugar

Why we like Sunergetic Premium Blood Sugar Support as best for men

Sunergetic offers a unique biotin supplement specifically designed for men aiming to maintain healthy blood glucose levels. While this product is designed to support blood sugar, it also contains significant doses of zinc and magnesium. There is some research that shows magnesium and zinc may be beneficial to the production of testosterone. (

7

,

8

)

This product includes 600 mcg of biotin (2000% of the daily recommended amount), complemented by 15 other vitamins and herbs such as vitamins, C, E, magnesium, zinc, manganese, and chromium, along with a diverse blend of herbs and spices.

There are more men diagnosed with type 2 diabetes than women, and research shows that men are diagnosed with diabetes at a younger age and lower body mass. (

9

)

Chromium is thought to play a role in reducing blood sugar levels by improving the efficacy of insulin in the blood. (

10

) Additionally, Sunergetic Blood Sugar Support contains a proprietary ingredient called GlucoHelp®, a banaba leaf extract blend that shows early promise for lowering blood sugar levels. One study showed that 14 healthy middle-aged men who took banaba leaf extract for two weeks significantly improved glucose tolerance and hemoglobin A1C thanks to one of its active ingredients, corosolic acid. (

11

)

Given the extensive range of ingredients in this supplement, it’s crucial to consult with your healthcare provider before starting it, especially if you’re already using other supplements or medications. This discussion will help ensure that the supplement does not adversely interact with any existing health conditions or treatments you may have.

While this supplement is designed to support healthy glucose levels, Sunurgetic recommends that it should be used in conjunction with a balanced diet and regular exercise.

Sunergetic’s products are non-GMO, produced in a GMP facility, and come with a 365-day money-back guarantee, which customers appreciate. However, it is not third-party tested.

What customers are saying

Most Amazon customers are satisfied with this product with over 1,300 reviews and an average rating of 4.1 out of 5 stars.

Build callout: “I have been taking this product for a few weeks. Combined with a reduction to my carb and red meat intakes, I am amazed at the reduction in my blood glucose numbers.”

Lisa E, verified Amazon customer

“I bought this product to help maintain my blood sugar. Have been using it for the past few weeks and noticed that my sugar level is in the 90s. Will continue using it and hopefully I will stop taking Metformin soon,” wrote another verified Amazon customer.

Some users state this product makes them feel drowsy and didn’t see a noticeable difference in their blood sugar.

“I have even less energy than I had when I was taking another supplement. My blood sugar has raised and I feel really tired all the time. I am pre-diabetic and was hoping to find a good supplement to keep me from having to start taking a prescription medication to control my blood sugar. I will continue to watch my diet and exercise and hopefully find a supplement that may be better at controlling blood sugar levels and improving my A1C,” says Amazon customer Rusty 2.

Specs


Form
Capsule

Dose
600 mcg

Key ingredients
Biotin, vitamin C, vitamin E, magnesium, chromium, GlucoHelp

Serving size
2 daily

Quantity
60 capsules

Price per serving
$0.67

Third-party testing
None

the ora organic beyoutiful skin, hair, and nails support supplement placed on a white table, with a gray background

Best organic biotin supplement

the ora organic beyoutiful skin, hair, and nails support supplement placed on a white table, with a gray background

Ora’s Beyoutiful hits the mark for organic biotin, with niacin, seaweed, and probiotics to support beautiful skin, hair, and nails.

Key product features



Icon Supplement Bottles


Form


Capsule

Icon Third Party Testing


Third-party testing


Yes

Icon Warranty


Guarantee


60 days

What you should know




Ora Organic’s Beyoutiful is a rock solid choice for an organic biotin supplement, and contains niacin plus a proprietary “Beauty Blend” for even more antioxidants, helping to promote radiant skin.


  • Ora Organic’s Beyoutiful contains just 60 mcg of biotin but is combined with another B vitamin (niacin or B3) plus their own Beauty Blend, which includes probiotics and seaweed for the most radiant skin.

  • This product is one of the more expensive products in our line up at $1.60 per serving.

  • Ora Organic aims to be a trusted name in the supplement space by using clean ingredients in clinically studied doses that meet both U.S. and European safety standards, all while providing excellent customer service.

Pros



Contains added nutrients: niacin and Beauty Blend



60-day money-back guarantee

Cons



Most expensive at $1.60/serving



Reviewers say it has a strong taste

Why we like Ora Organic Beyoutiful as best organic

Ora Organic Beyoutiful stands out as a top choice for those seeking an organic biotin option due to its commitment to using only the highest quality, certified organic ingredients. This attention to organic sourcing ensures that the product is free from pesticides, herbicides, and synthetic additives, which is crucial for consumers prioritizing natural and environmentally friendly products.

Ora Organic Beyoutiful’s formula combines an organic biotin supplement with added B-complex vitamins, a proprietary “Beauty Blend,” and

probiotics

. While the biotin dose is on the lower side at 60 mcg, it also contains 3 mg of vitamin B3 (niacin), along with 410 milligrams of their Beauty Blend, a combination of seaweed extract, antioxidants, and probiotics—all of which may play a role in healthier skin, hair, and nails.

The inclusion of niacin may be a bonus for anyone looking to enhance their skin health. Early research shows that niacin may help reduce skin aging and pigmentation. (

12

) The use of astaxanthin and fucoidan, two types of seaweed, may aid in improving skin moisture, hyperpigmentation, and elasticity, as well as improve hair health. As an added benefit, they are eco-friendly and sustainable products to incorporate into your beauty routine. (

13

)

Lastly, we appreciate the addition of 1 billion colony-forming units (CFUs) of probiotics. Probiotics are “good” bacteria that help maintain the appropriate balance of bacteria within our gut, which is responsible for approximately 80% of our immune system. (

14

) The strain Ora Organic uses,

Bacillus subtilis

, may support skin and hair cells. (

15

,

16

)

Ora Organic products are high quality, third-party tested by ISO Labs, and meet U.S. and European safety standards. Additionally, a Certificate of Analysis (COA) can be found for each product in their lineup, so you can see exactly what’s inside.

This is one of our most expensive options, at $1.60 per serving, so it may not work for everyone’s budget.

What customers are saying

With an average rating of 4.3 out of 5 stars across more than 200 reviews, most Amazon customers are satisfied with their purchase, noting improvements in their skin and nails.

Build callout: “I love these vitamins! People always compliment me on my skin and it also has made my hair grow faster and healthier. I highly recommend it!”

Samuel, verified Amazon customer

“I’ve been taking this product for 4 months. I want to reverse the signs of sun damage and I notice a difference in the texture of my skin. I love what I see and love the all natural ingredients! 👍😍I will continue to take this product,” says Shelg, a verified Amazon customer.

However, some reviewers mentioned the smell and taste was a little off-putting, but not enough to stop them from taking the supplement.

Paola Zablah

writes, “The product is truly amazing. In a little over two weeks my hair loss has diminished so much! I used to lose at least 40-50 individual hair strands when I washed and styled my hair. Today it was maybe only 12-15. The only bad thing is that the capsules have a bad scent and taste. I just cover my nose and swallow! I think dealing with the smell and taste is peanuts compared to the benefits I see. I totally recommend this product!”

Specs


Form
Capsule

Dose
60 mcg

Key ingredients
Biotin, niacin, beauty blend

Serving size
2 daily

Quantity
60 capsules

Price per serving
$1.60

Third-party testing
ISO Labs

the future kind vegan collagen booster supplement against a white background

Best vegan biotin supplement

the future kind vegan collagen booster supplement against a white background

Future Kind is a leader in vegan supplements, helping you meet your health goals while creating a happier, healthier planet.

Key product features



Icon Supplement Bottles


Form


Capsule

Icon Third Party Testing


Third-party testing


Yes

Icon Earth


Footprint


Eco-friendly

Icon Warranty


Guarantee


30 days

What you should know




Future Kind’s vegan collagen booster uses all vegan ingredients to provide an environmentally friendly and cruelty-free product that may promote healthier skin, hair, and nails.


  • This vegan collagen booster uses 2,500 mcg of biotin along with other vitamins and minerals for a total of 16 collagen-boosting nutrients that support healthy hair, skin, and nails.

  • Future Kind’s price is mid-range at $1.00 per serving, and each purchase helps them achieve their sustainability mission of creating plant-based, environmentally conscious supplements that leave a carbon-neutral footprint.

  • Their unique formula is third-party tested in a GMP facility and is free from major allergens, making it a great product for vegans or anyone looking for an eco-friendly supplement.

Pros



Moderate dose of 2,500 mcg



Contains added nutrients like vitamins A, C, E, folate, and zinc



Eco-friendly packaging and shipping

Cons



Moderately priced at $1.00 per serving



Shorter return window of 30 days

Why we like Future Kind Vegan Collagen Booster as best vegan

Future Kind Vegan Collagen Booster stands out as the best option for vegans primarily due to its 16-ingredient formula that caters specifically to the needs of those following a plant-based diet. Unlike traditional collagen supplements, which are derived from animal sources, this product uses 100% vegan ingredients to support the body’s natural collagen production. The company also offers many eco-friendly initiatives, including sustainable packaging, carbon-neutral shipping, and donations to animal sanctuaries.

This product contains 8,333% of the daily value for biotin, plus a unique blend of various collagen-boosting vitamins, minerals, and amino acids. You’ll find 2,500 mcg of biotin, along with vitamins A, C, E, folate, pantothenic acid, three amino acids, and various plant extracts, many of which have been well-studied.

For one, vitamin A has been shown to aid in collagen production. (

17

) Vitamin C has been shown to reduce wrinkles by preventing collagen loss due to sun exposure and natural aging of the skin. (

18

) Lastly, vitamin E is an important antioxidant and anti-inflammatory that helps maintain skin health.  Levels decline as we age, so getting a little boost from a supplement may help improve your skin. (

19

)

Future Kind has also incorporated amla, an Ayurvedic super berry. Amla, a fruit native to India and Southeast Asia, has been used in Ayurvedic medicine for centuries to address a variety of ailments. Research highlights that the powerful phytonutrients found in amla are promising in reducing signs and symptoms of skin aging, though further research is needed. (

20

,

21

)

Future Kind stands out in the vegan supplement space by creating cruelty-free, trusted products. They are third-party tested by Dyad and made in an FDA-regulated facility. At a reasonable price point of $1.00 per serving, it may be worth a try if you’re looking for a vegan biotin supplement.

What customers are saying

This product has an average of 4.3 out of 5 stars on Amazon, with over 260 reviews. Customers notably state this is the most effective collagen supplement they have tried.

“I can actually see the results from a month using these. I’m pretty hard on my hands and my nails break fairly often. They’re longer & stronger than ever and haven’t broken since I’ve started taking these. My hair is growing faster than usual as well. I’m super impressed by these. They’re quite large & you have to take 2 at a time but it’s completely manageable & definitely worth it.”

Nicholas, verified Amazon customer

Another Amazon customer, Abbie, agrees: “After having my son I lost a lot of hair and fragile nails. It is so hard to find a TRUE VEGAN supplement that actually works, BUT HERE IT IS LADYS!!!! My hair, skin, and nails are BACK! I have been taking these for two weeks and it worked!!!! Performance is excellent, no taste unless you let it sit in your mouth or bust it then it tastes like powder green tea almost.”

However, some reviewers mentioned that they thought the capsules were too large, and a few mentioned that the bottles were one capsule short.

“I just finished my first bottle and my last dose in the bottle, only had 1 capsule left. So I thought ok missing 1 capsule maybe it was a mistake or accident. Just opened my second bottle and I just counted the capsules…and guess what…only 59 capsules!!! Made my husband and adult son verify the amount and we all counted 59!!! I thought this was a 60 count 2 a day dose vegan collagen!!! Feels very deceiving!!!” says verified customer SSP.

Specs


Form
Capsule

Dose
2,500 mcg

Key ingredients
Biotin, additional vitamins, minerals, amino acids, plant extracts

Serving size
2 daily

Quantity
60 capsules

Price per serving
$1.00

Third-party testing
Dyab Labs

the olly undeniable beauty hair, skin, and nail gummies against a white background

Best biotin for nail growth

the olly undeniable beauty hair, skin, and nail gummies against a white background

Olly makes a tasty gummy with biotin, vitamins C and E, and keratin to support healthy nails.

Key product features



Icon Supplement Bottles


Form


Gummy

Icon Earth


Green


Certified B Corp

Icon Warranty


Guarantee


30 days

What you should know




Olly’s biotin gummy combines vitamins C, E, and keratin for a more powerful combination of beauty benefits.


  • Olly’s gummy has a moderate amount of biotin, 2,500 mcg per serving, along with 15 mg of vitamin C, 7.5 mg of vitamin E, and 50 mg of keratin.

  • This product is fairly priced at $0.47 per serving.

  • Olly is a Certified B Corporation, meaning they adhere to high standards for ethical business practices.

Pros



Moderate dose of 2,500 mcg



Contains added nutrients: vitamins C, E, keratin



Moderately priced at $0.47/serving

Cons



Not suitable for vegetarians or vegans as it contains gelatin



Contains 2 grams of added sugars



Shorter return window of 30 days

Why we like Olly Undeniable Beauty as best for nail growth

For those focused on improving the strength of their nails, consider Olly’s ruby red grapefruit-flavored biotin gummies. Combining 2,500 mcg of biotin with 15 mg of vitamin C, 7.5 milligrams of vitamin E, and keratin may help create an antioxidant powerhouse that strengthens hair, skin, and nails. However, these benefits might be limited for those who are deficient in biotin and taking higher doses closer to 10,000 mcg daily.

Keratin is a protein that naturally occurs in our bodies, predominantly in our hair, skin, and nails. The nail plate consists of soft and hard keratins, which provide structure and strength to the nails.  (

22

) Symptoms of low keratin levels include brittle nails and hair breakage. If you can’t get enough keratin through your diet or have a condition affecting keratin production, you might benefit from a biotin supplement with this added nutrient. (

23

) You should speak with your healthcare provider if you suspect you may be deficient in keratin.

We like that Olly holds a B Corp certification, meaning it meets high standards of performance, accountability, and transparency in employee benefits, charitable giving, and ethical supply chain practices. This product is also third-party tested by NSF for quality.

Keep in mind, this product contains gelatin, so it’s not suitable for those following vegetarian or vegan diets.  It also has 2 grams of added sugars, which may or may not be ideal for everyone..

If you’re looking for a biotin supplement with added vitamins plus keratin to support healthier nails from a company that uses ethical business practices, we think you should give Olly’s Undeniable Beauty a try.

What customers are saying

With almost 4,000 reviews and an average rating of 4.6 out of 5 stars, most Amazon customers are satisfied with their purchase of Olly Undeniable Beauty thanks to the benefits they are seeing.

“A few months back I hit panic mode when I noticed my hair was suddenly falling out faster than ever. I decided to look into some different vitamins and found these. I am on my 2nd pack. I don’t know if these are why but the hair shedding has seemed to go back to more of a normal loss. Also, my nails look amazing and are super strong. The grapefruit flavor is delicious with no weird aftertaste.”

Dana & Kevin, verified Amazon customer

Another verified Amazon customer, Xtyxo, also loves the product, writing, “I have tried thousands of biotin supplements, vitamins, serums, etc but Ollie made a noticeable difference within 2 weeks. My nails grew back fast, healthier and stronger, hair growth started happening way quicker than expected and it’s soft and shiny which is a bonus, and my skin has more of a glow and I don’t have to apply lotion as I don’t get ashy as easily as I have before taking these. Total beauty lifesaver!”

Some customers are dissatisfied with the way the item is shipped, which causes gummies to melt, and are unsure whether the product works.

Verified Amazon reviewer Bek notes, “I have taken these for about 4 months – I see no difference in my hair or nails. I decided to try them for 6 months to be able to see if things changed. I have always ordered in the plastic jar but this last month I ordered in the package – when it arrived the ice bag they had put in was as hot as if boiling water had been put in it. The bag with the gummies equally hot and all gummies stuck together. I don’t know how long it was in transit but this was an utter fail for packaging. Order in plastic jar – bag is also child proof and difficult to open every day.”

Specs


Form
Gummy

Dose
2,500 mcg

Key ingredients
Biotin, vitamins C, E and keratin

Serving size
2 daily

Quantity
60 gummies

Price per serving
$0.47

Third-party testing
NSF

the ella beauty protein powder supplement with a purple lable against a purple and yellow background

Best biotin and collagen supplement

the ella beauty protein powder supplement with a purple lable against a purple and yellow background

If you’re looking for a biotin supplement with collagen that can double as a snack, look no further than Naked Nutrition’s powder.

Key product features



Icon Supplement Bottles


Form


Powder

Icon Earth


Clean ingredients


Yes

Icon Third Party Testing


Third-party testing


Yes

Icon Warranty


GMP Certification


Yes

What you should know




Naked Nutrition’s Ella Beauty Protein Powder is an excellent choice for those seeking extra protein with their biotin and collagen supplement.


  • Naked Nutrition’s Ella Beauty Protein Powder is packed with 30 mcg of biotin, collagen from grass-fed cows, zinc, vitamin C, and hyaluronic acid to help enhance the health of your hair, skin, and nails.

  • This comprehensive shake offers 20 grams of protein and is free from added sugars, artificial colors, or sweeteners, making it a healthier choice.

  • This product is one of the most expensive in the line-up at $2.00, but it also serves as a healthy snack.

  • Naked Nutrition’s Ella is a scientist-formulated protein powder that’s free from artificial sweeteners, flavors, and colors, making it the perfect option for people who want even more nutritional value from their biotin supplement.

Pros



Contains added nutrients such as collagen, hyaluronic acid, chia seeds, and MCT powder



Comes in chocolate and vanilla



Informed Choice certified



No artificial colors, flavors, or sweeteners

Cons



Must mix into liquid, which may be inconvenient



Higher price point of $2.00/serving



Low biotin dose of 30 mcg/serving



Return policy- 14 days for unopened products

Why we like Naked Nutrition Ella Vanilla Beauty Protein Powder as best with collagen

If you’re not a fan of taking vitamins, Naked Nutrition’s biotin and

collagen powder

lets you skip the pill. The Ella Beauty Protein Powder contains 30 mcg of biotin, collagen peptides from grass-fed cows, a small amount of electrolytes, seed proteins, and MCT powder. Besides getting 20 grams of protein total, you’ll also get 100% of the daily value for vitamin C (90 mg) and 50% of the daily value for zinc (6 mg) to help support your body’s natural collagen and keratin production.

Collagen, the most abundant protein in our bodies, is vital in maintaining healthy hair, skin, and nails. The collagen peptides from grass-fed cows are broken down, so it’s easier to absorb. Ella Beauty Protein Powder  also contains amino acids like glycine and proline, vital for collagen synthesis. (

24

) This is helpful since collagen synthesis slows as we age, making supplementation a good idea. Collagen also plays an important role in joint health. (

25

)

Naked Nutrition also adds 100 mg of hyaluronic acid, a well-studied product in the skincare space because of its hydrating and anti-aging properties. Research supports the use of hyaluronic acid as an effective ingredient for supoprting the quality of skin and its elasticity. (

26

)

The protein in this product is derived from a unique blend of collagen and seed proteins. The addition of chia and pumpkin seeds adds additional plant protein, two grams of fiber, and antioxidants. (

27

) Medium-chain triglyceride (MCT) powder provides a source of energy from fat that may support modest weight loss and exercise endurance. (

28

,

29

)

The powder can be mixed into any cold beverage for a tasty and nutritious snack that provides 110-120 calories and 20 grams of protein when mixed with water or another zero-calorie beverage.

Naked Nutrition is a trusted brand, and its products are made in a GMP facility and Informed Choice certified, meaning they undergo regular testing to ensure they are safe and free from any banned or potentially harmful substances.

Although Ella Beauty Protein Powder is a bit pricier than some at $2.00 per serving, we like the fact that it can also be counted as a nutritious snack or

post-workout protein shake

, so you get more for your money.

What customers are saying

Amazon customers typically enjoy Naked Nutrition’s Ella Beauty Protein powder, as evidenced by its 4.4-star rating from 97 reviews.

”This is an excellent product! Great ingredients, complete transparency, and super versatile. I mixed mine with some cold-brew coffee and almond milk and it tastes great! There aren’t a lot of products out there that have hyaluronic acid and collagen. Definitely a game-changer for your skincare routine.”

Verified Amazon customer

Verified purchaser Erika likes this product, writing, “I truly love the clean simple ingredients in this brand. I appreciate that I am taking just one product that has so many benefits all packed in. The flavor for once I can say is really good. I don’t add this in anything as it tastes great as a rich chocolate flavor should be no weird chalky aftertaste.”

But some reviewers find the taste unpleasant or too sweet.

“Unfortunately I have no idea if this product does anything because it tastes awful. It has that artificial taste like sweet n low or Splenda. I tried to put it in my coffee like with the other collagen powders, but nothing masks the taste,” wrote verified purchaser Brandi.

Specs


Form
Powder

Dose
30 mcg

Key ingredients
Biotin, collage, vitamins, minerals

Serving size
2 scoops daily

Quantity
20 servings (40 scoops)

Price per serving
$2.00

Third-party testing
Informed Choice

the pure encapsulations hair/skin/nails ultra supplement against a white background

Best biotin supplement for women

the pure encapsulations hair/skin/nails ultra supplement against a white background

Pure Encapsulations combines biotin with collagen, B10, and CoQ10 to support healthy hair, skin, and nails.

Key product features



Icon Supplement Bottles


Form


Capsule

Icon Ingridients V2


Also contains


Collagen, B10, CoQ10

Icon Dust Resistant


Allergens


None

Icon Warranty


GMP-certified


Yes

What you should know




Pure Encapsulations Hair/Skin/Nails Ultra supplement uses high-quality ingredients to deliver a powerful combination of vitamins, minerals, collagen, and antioxidants that support hair, skin and nail health.


  • Pure Encapsulations Hair/Skin/Nails Ultra contains 6,000 mcg of biotin, along with numerous vitamins and minerals like vitamin C, folate, B10, and zinc. Collagen and silica support the body’s collagen production, and antioxidants like CoQ10 are added.

  • At $1.61 per serving, this product is one of the most expensive options on our list.

  • If you’re looking for a hair, skin, and nail supplement that uses high quality ingredient standards and promises to be free from any unnecessary ingredients, then this might be the perfect product for you.

Pros



High biotin dose of 6,000 mcg



Also contains collagen, vitamin B10, vitamin C, folate, CoQ10, and more

Cons



More expensive than average at $1.61/serving



High dose may cause stomach upset



Large capsule size which may be difficult for some to consume

Why we like Pure Encapsulations Hair/Skin/Nails Ultra for Women as best for women

Pure Encapsulations’ Hair/Skin/Nails Ultra includes a high dose of biotin and essential nutrients designed to slow the aging process. It contains 6,000 mcg of biotin, plus a robust blend of vitamins and minerals that support the health of hair, skin, and nails. These include 250 mg of vitamin C, 30 mg of zinc, 667 mcg of folate, 500 mg of collagen, and 30 mg of silica, making it an excellent choice for anyone, particularly women, looking to enhance their natural beauty and wellness.

This unique blend also includes 150 mg of vitamin B10, also known as para-aminobenzoic acid, which is needed to produce folate and is a common ingredient in skincare as it may benefit both skin and hair health. (

30

) Vitamin B10 is found in foods such as eggs, milk, and meat.

Additionally, the formula includes 60 mg of the antioxidant CoQ10. Our bodies naturally produce CoQ10, but its production diminishes with age. Research has demonstrated that regular CoQ10 intake may help promote

healthy aging

by reducing the appearance of fine lines and wrinkles while enhancing skin smoothness. (

31

) It may also play a role in hair health by stimulating hair keratins. (

32

)

Grapeseed oil also makes the ingredient list, which may also play a role in hair health, especially in the glossiness of hair, although more studies are needed to determine if oral use would have the same effect. (

33

)

In its mission, Pure Encapsulations creates products that contain pure, high-quality ingredients backed by science and free of unnecessary additives and most common allergens. Each ingredient undergoes rigorous testing, checking for purity, potency, heavy metals, and any potential contaminants. They are NSF and GMP certified, and exceed U.S. supplement manufacturing standards, leading to brand trust.

What customers are saying

Amazon customers agree that this is a solid choice, with over 1,000 4.5-star reviews. Customers like the quality, ingredients, and effectiveness of this product.

Verified customer Trisha says, “My nails are strong for the first time in years – hair seems healthy and skin looks great. On my second bottle.”

“After a few weeks my skin is hydrated, and I’ve noticed significantly less shedding when I brush my hair after I shower. I’ve also noticed a bunch of baby hairs growing, and my lashes are longer than ever. Highly recommend these vitamins. You get what you pay for when it comes to bioavailability, and quality. This company is one of the best out there.”

Stephanie, verified Amazon customer

Some users mention they weren’t able to notice a difference after using the supplement, and others note the size of the pill is difficult to swallow.

Amazon customer Rivlyb was not a fan, saying, “These pills are hard to swallow and the cost of a one month supply is not worth it. I could not even focus on the benefits (if there were any) because I dreaded having to take these pills everyday.”

Specs


Form
Capsule

Dose
6,000 mcg

Key ingredients
Biotin, vitamin C, niacin, folate, zinc, copper, manganese, collagen, silica, CoQ10, grape seed

Serving size
2 daily

Quantity
60 capsules

Price per serving
$1.61

Third-party testing
NSF

How we test supplements

We aim to provide you with a list of high quality products to help you meet your individual health goals. We are committed to researching each product extensively and include medical reviews by our leading industry experts who are looking for efficacy, safety, price and more, ensuring confidence in unbiased reviews.

You can read our

full supplement testing methodology here

.


Efficacy—40%

You shouldn’t waste your well-earned money on a supplement that doesn’t actually live up to its claims. We recommend products that are backed by science, with studies that prove ingredient  effectiveness. That’s why efficacy is one of our biggest priorities when evaluating supplements.

Here’s what we look for:


  • Clinical evidence

  • Calories per serving

  • Dose efficacy

  • Synergistic effects

  • Proprietary blends


Safety and side effects—35%

Since supplements are not regulated by the FDA, determining product safety and evaluating any potential side effects is important before any supplement should be recommended. Our team looked at the following categories so you can make a well-informed decision.

We evaluate:


  • Reported side effects

  • Third-party testing

  • Manufacturer accreditation

  • Artificial sweeteners


Value—20%

Getting a high quality product at a fair price is important to us, that’s why our team always lists pricing information for your consideration.

Our factors in this rating include:


Customer experience—5%

Poor customer service can be a nightmare for customers.  We like to recommend products that are easy to purchase, come with strong customer support teams that can answer questions, and guarantee their products.

Our factors in this rating include:


  • Ease of purchase

  • Shipping and returns

  • Customer support

How to choose the best biotin supplement

When shopping for biotin supplements, it’s best to consider which products will meet your individual health needs. You should look for products made with high-quality ingredients from trusted brands that perform testing to ensure their products are pure and safe. Additionally, it is important for anyone with food preferences, sensitivities or allergies to look for products that are free from allergens, unnecessary fillers or binders, and artificial colors, flavors, and sweeteners.

Many biotin supplements have added vitamins, minerals, and other nutrients, which may or may not work well for you. As always, consult with your healthcare provider to ensure that adding a supplement is the right choice, as it may interfere with certain health conditions and medications.

Benefits of biotin

Biotin offers a multitude of benefits and is often celebrated as a powerhouse vitamin for its vital roles in health and beauty.

Supports energy metabolism

Biotin plays a crucial role in energy metabolism by converting the foods we eat into usable energy. This process is essential for breaking down fats, carbohydrates, and proteins, ensuring that our bodies efficiently utilize these nutrients for optimal functioning. Therefore, biotin is vital in maintaining our overall health, supporting everything from our energy levels to our cellular processes. By aiding in these metabolic activities, biotin helps keep our bodies running smoothly and efficiently. (

1

)

Supports healthy hair growth

Biotin may help support hair growth, especially for those who are deficient. Biotin boosts keratin production, which is the main structural component of hair. Biotin can also improve brittle hair and reduce hair breakage and hair loss. (

3

)

May support nail health

Biotin’s role in increasing keratin production also benefits nail health. Biotin helps increase the thickness of the nail plate, leading to a stronger foundation for your nails. In vitro studies show that 2,500 mcg of biotin stimulates cell differentiation and helps maintain epidermal cell growth, which may help nail growth rate. (

34

)

Improves skin health

Biotin is involved in taking the food that you eat and breaking it down into useful nutrients such as fatty acids, which play a role in skin health and appearance. (

35

) Without adequate levels of biotin, skin problems may arise including dry, scaly skin and a rash around the eyes, nose, and mouth. Once supplemented over a few months, these signs typically disappear and skin appearance improves. However, more studies are needed to determine if biotin supplementation may improve the skin of non-deficient, healthy individuals too.

FAQs


Who should take a biotin supplement?



Anyone with a biotin deficiency should talk to their healthcare provider about starting a biotin supplement. Those most at risk include individuals with biotinidase deficiency, malnutrition, alcohol dependence, or those who are pregnant and lactating. People who are on long-term anticonvulsants are often prescribed biotin because the medication may lower biotin status. People who consume raw eggs may also be at increased risk of biotin deficiency because the protein in egg whites inhibits biotin absorption. (


3


,


36


) There is little evidence to support the use of biotin supplements in healthy populations because most people are able to meet their needs through diet alone.


What is the best form of biotin to take?



The best form of biotin to take is based on personal preference and needs. There is no one-size-fits-all answer. Capsules and tablets may work for some, while others may prefer a chewy gummy or powder.


What is the downside of taking biotin?



Biotin in high doses is safe for most people, but certain populations should be aware of other risks. Taking high doses of biotin may interfere with certain lab tests, causing falsely elevated or lowered levels. Biotin supplements may also interfere with medications and other supplements you may be taking. Lastly, people with diabetes should proceed with caution as biotin supplements may interfere with blood glucose levels. (


37


)


Which biotin is best for hair growth?



If you’ve decided to take a biotin supplement for hair growth, look for one that combines biotin with other important nutrients that play a role in healthier hair, such as keratin, collagen, and vitamin C, maximizing the potential benefit. (


18


,


22


,


38


,


39


)


These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any diseases.

Our experts


Victoria Burgess, Ph.D., CSCS, CISSN

Victoria Burgess earned her Ph.D. in Health and Human Performance from Concordia University Chicago and holds her NSCA CSCS and Certified Sports Nutritionist (CISSN). She is an adjunct professor in the Human Performance and Nutrition department at Concordia University Chicago & Parker University, where she teaches undergraduate, graduate, and doctoral-level courses.


Robert Wildman, Ph.D., RD, LD, CISSN, FISSN

Dr. Robert Wildman (“Dr. Rob”) is a globally renowned exercise, fitness, and nutrition expert who speaks around the world on exercise and sport nutrition, and continues to work with professional and elite athletes to achieve their highest level of performance as well as health and fitness. Rob received his Ph.D. from The Ohio State University, earned his MS from Florida State University, and earned his BS from the University of Pittsburgh. He is also a registered and licensed dietitian.


Joana Neziri, M.S., NASM CPT

Joana is a writer, editor, and content strategist focusing on nutrition, fitness, and all things health. After earning a master’s degree in business from the University of North Florida, she began a career in research and digital marketing.


Jessica Coulon

Jessica is a contributing editor and writer for Fortune Recommends who specializes in fitness, health, nutrition, and science content. Previously, she was an editor for Popular Mechanics and Bicycling, where she covered pro cycling news, wrote how-to guides, and tested all the latest and greatest bike gear. She was also a regular shoe tester and contributor for Runner’s World. You can often find her skiing or riding her mountain bike, and racing with the F1RE female enduro team.


Kelly Uhler

Kelly has a multifaceted background in elder care, health care, and copywriting. She has worked for organizations such as A Place For Mom and Homecare.com, which gave her the opportunity to work closely with families, providing reliable information to help them make informed decisions about their loved one’s health, safety, and quality of life.

Katie Drakeford, MA, RD, CSP, LD, CLC

Katie Drakeford, MA, RD, CSP, LD, CLC

Fortune Recommends Nutrition Writer

About Author


Katie Drakeford, MA, RD, CSP, LD, CLC, is a board-certified pediatric dietitian and certified lactation counselor. Katie has been a registered dietitian for more than 12 years, providing nutrition therapy to all ages across the lifespan, but found her passion in pediatrics. She has specialized in pediatric nutrition for the past 7 years.


Additionally, Katie earned her certified lactation counselor (CLC) certification. She enjoys working with parents, helping them meet their breastfeeding goals and ultimately leading to improved infant nutrition.







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