The 8 Best Biotin Supplements of 2020, According to a Dietitian

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First Look

Best Whole Food-Based: Megafood Skin, Nails & Hair 2 at Amazon

"Made from wholesome ingredients including carrots, oranges, and brown rice."

Best Budget: Nature’s Bounty Biotin 5,000 mcg at Amazon

"The product received an A+ rating by Labdoor, an independent supplement quality testing company."

Best Gluten-Free: Country Life High Potency Biotin 5mg at Amazon

"Each capsule contains 5,000 mcg (or 5 mg) of bioactive d-biotin to support healthy hair, scalp, and nails."

Best B-Complex: Vitamin Code Raw B-Complex at Amazon

"A variety of energizing B vitamins mixed with 23 organic fruits and vegetables, probiotics, and enzymes."

Best Biotin Only: Solgar Biotin 300 mcg at Amazon

"One capsule delivers 100x the Adequate Intake, or level assumed to ensure nutritional adequacy."

Best Vegan: Jarrow Formulas Biotin 5,000 mcg at Amazon

"Each veggie-cap contains 5,000 mcg of highly bioavailable d-biotin and checks all the must-have boxes for vegans."

Best Hypoallergenic: NOW Supplements Biotin 1,000 mcg at Amazon

"Free of wheat, gluten, soy, milk, egg, fish, shellfish, and tree nuts."

Best Gummy: Vitafusion Extra Strength Biotin Gummies at Amazon

"Great for those who struggles to swallow pills or simply prefers a sweet, chewable option."

Hair loss, brittle nails, and skin rashes are a sign of biotin deficiency, so biotin supplementation is thought to promote optimal hair, skin, and nail health. While the research is limited, biotin is widely used to try to strengthen nails and hair. The water-soluble B vitamin naturally found in eggs, fish, meat, and seeds is required for energy metabolism and is key for certain enzymes in the body.

Biotin supplements come in various forms, including capsules and gummies. There are many formulations on the market to suit your individual needs. Some supplements include biotin as part of a B-complex or mixed into a multivitamin, whereas biotin-only supplements are also an option.

Here, the best biotin supplements.

Our Top Picks

Best Whole Food-Based: Megafood Skin, Nails & Hair 2

If non-GMO, whole food supplements are a priority for you, you’ll want to continue that trend with a high-quality biotin supplement. Made from wholesome ingredients including carrots, oranges, and brown rice, Megafood's Skin, Hair & Nails 2 Supplement uses 300 mcg plant-based biotin as an alternative to a typical synthetic supplement. Each two tablet serving also contains vitamins A, C, E, and B6 as well as zinc, selenium, and pantothenic acid.

This supplement has limited inclusion of herbs when compared with the regular MegaFood Skin, Hair and Nails supplement, which is ideal for those looking to limit or avoid botanicals in their supplements. It does contain nettle leaf, an antioxidant-rich herbal ingredient that has been used to treat eczema and hair loss in folk medicine.

The high-quality supplement is non-GMO Project Verified, Glyphosate Residue Free, certified gluten-free, certified vegan, kosher, and free of dairy and soy.

Best Budget: Nature’s Bounty Biotin 5,000 mcg

Reaping the benefits of biotin doesn’t have to cost a fortune. Nature’s Bounty has a highly effective option for a fraction of the cost of competitors. Their rapid release soft gels are made without preservatives, gluten, or sugar, and they contain just as many micrograms of biotin as pricier brands. Plus, each bottle contains 72 soft gels, so you'll get a large supply despite the low cost.

Each once-daily soft gel contains 5,000 mcg of biotin. Nature's Bounty recommends taking the supplement with a meal. The product received an A+ rating by Labdoor, an independent supplement quality testing company.

Best Gluten-Free: Country Life High Potency Biotin 5mg

If you're gluten-free, you know that it can be hard to find 100% gluten-free supplements. Country Life's High Potency Biotin supplement is certified gluten-free by GFCO so you can rest assured that this product meets the strictest of gluten-free standards. Each capsule contains 5,000 mcg (or 5 mg) of bioactive d-biotin to support healthy hair, scalp, and nails.

The brand is devoted to product integrity including the quality of ingredients as well as the consistency of the formula and accuracy of labeling. They stand by the idea that Country Life is not just a brand name placed on someone else's product. In fact, they manufacture 97% of their own products at a production facility in New York State.

The non-GMO Project Verified supplement is made with top quality ingredients and is also Certified Vegan. If you have other allergies or intolerances, this product may be a good choice. It's also free of yeast, corn, wheat, soy, milk, salt, sugar, preservatives, magnesium stearate, as well as artificial colors, flavors, and sweeteners.

Best B-Complex: Vitamin Code Raw B-Complex

If you're in search of a top-quality B-complex that contains biotin, look no further. Vitamin Code's Raw B-Complex is a high potency, whole food formula that offers a variety of energizing B vitamins mixed with 23 organic fruits and vegetables, probiotics, and enzymes.

Each two capsule serving contains 325 mcg biotin as well as over 100% DV of thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, and pantothenic acid. The capsules can be taken with or without food. If you don't like swallowing pills, you can open the capsules and add the contents to water or juice.

The certified vegan, non-GMO project verified B-complex is gluten-free, dairy-free, kosher, and free of binders and fillers. Note that if you are vegan, you may want to consider a B-complex supplement, as you have a higher risk of vitamin B-12 deficiency.

Best Biotin Only: Solgar Biotin 300 mcg

If you take a close look at the ingredient labels, many biotin supplements contain a variety of B-vitamins, complementary nutrients, or extra herbal ingredients. If you're looking for the best supplement with only biotin, Solgar's Biotin 300 mcg is a great choice. The brand does offer higher doses, but 300 mcg is not too little, not too much—just right. One capsule delivers 100x the Adequate Intake, or level assumed to ensure nutritional adequacy. The tablet is vegan, kosher, gluten-free, dairy-free, and non-GMO.

If weak nails are a motivation to reach for a biotin supplement, you may be in luck. A recent medical review of the science behind biotin revealed that oral biotin shows promising results in treating nail conditions.

Best Vegan: Jarrow Formulas Biotin 5,000 mcg

If you follow a vegan lifestyle, you’re probably used to double-checking labels and carefully vetting any health products to make sure they match your vegan requirements. A lot of people don’t think about vegan needs when it comes to supplements, but capsule supplements are often made from animal-based gelatin. Jarrow Formula's Biotin capsules check all the must-have boxes for vegans.

While vegans need to be aware of other key B-vitamins such as vitamin B12, which maybe lacking in the vegan diet, biotin is found in many plant foods such as cereal, legumes, and nuts. A supplement, like Jarrow Formulas, is a great way to boost your biotin intake. Each veggie-cap contains 5,000 mcg of highly bioavailable d-biotin, the naturally occurring form of biotin. The product is free of wheat, gluten, soybeans, dairy, egg, fish, shellfish, peanuts, and tree nuts. It's also non-GMO certified by NSF.

Best Hypoallergenic: NOW Supplements Biotin 1,000 mcg

Choosing a supplement that is free of common allergens can be a challenge. Now Supplements' Biotin 1,000 mcg is produced in a Quality GMP Assured facility and is manufactured without wheat, gluten, soy, milk, egg, fish, shellfish, and tree nuts (although other supplements containing some of those ingredients are made in the same place).

In addition to 1,000 mcg of biotin, each capsule contains a small amount—only 4 mg—of vitamin C. The fat-soluble form of vitamin C, ascorbyl palmitate, is an antioxidant that also works as a preservative. Each bottle contains 100 high-quality, budget-friendly capsules. They're also kosher and non-GMO.

Best Gummy: Vitafusion Extra Strength Biotin Gummies

Anyone who struggles to swallow pills or simply prefers a sweet, chewable option can benefit from gummy vitamins. If you’re looking for a great biotin supplement in a gummy formula, Vitafusion’s Extra Strength Biotin Gummies pack 5,000 mcg of biotin into just two chewable bites.

These tasty supplements come in a natural blueberry flavor that will make you look forward to taking them daily. Some biotin gummies contain artificial sweeteners like erythritol; however, Vitafusion uses regular sugar and tapioca syrup. While these sweeteners do add 15 calories and 3 g of added sugars to the gummies, they are healthier alternatives to high fructose corn syrup.

What to Look for in a Biotin Supplement

Dosage: While super-high potency formulations of biotin are available, more is not always better with supplements (it can be dangerous) and because biotin is a water-soluble B vitamin, the excess will generally be excreted in the urine. It's important to note that the Adequate Intake for adults over 19 years is 30 mcg, and no upper limit has been established.

Form: Biotin supplements come in many forms including capsules and chewable gummies. If you have trouble swallowing pills, consider choosing a gummy option. However, note that gummies generally have added sugars.

Complementary or Herbal Ingredients: Biotin supplements may contain additional ingredients including complementary nutrients such as other B vitamins or herbs that are thought to promote hair, skin, and nail health. Always double-check the supplements ingredient list to ensure that all of the ingredients are safe for your individual needs. Be sure to check with your physician before starting any supplement, including biotin.

What Experts Say

"Many people are aware of biotin for its reputation in promoting healthy hair and strong nails. The fact is, though, very little evidence exists in strong studies indicating that biotin supplementation for hair and nails is actually effective. While small doses of biotin may be safe —and anecdotally effective—large amounts may be harmful. The best route to healthy hair and nails is truly through attention to a healthy, colorful, and balanced diet." —Kristin Kirkpatrick, MS, RDN

Why Trust Verywell Fit

A personal note on my recommendations written above. As a dietitian, I am careful to recommend supplements. I spent time reviewing the most current clinical research on biotin supplementation and looking at multiple products and brands. I believe the biotin supplements in the round-up are made by trusted brands and are composed of high-quality ingredients. —Eliza Savage, MS, RD, CDN