Nutricost Biotin 10,000 mcg Review

The Nutricost Biotin Capsules listing presents Biotin (Vitamin B7) in a 240 capsule bottle, with the product details stating 240 Capsules With 10000 MCG Of High Quality Biotin Per Capsule. The page describes the product as offering up to an 8 month (240 day) supply, with one serving being just one capsule. Biotin is also described as Vitamin B7, also known as Vitamin H. The page states that Nutricost Biotin is Non-GMO, Gluten Free, and 3rd Party Tested, and that it is made in a GMP Compliant, FDA Registered Facility. A 120 capsule size is also offered in the size selector, and a 240 capsule size is shown as the selected option on this page. The page lists a regular one-time price of $11.97, with a subscription option that saves up to 20 percent, shown as a discounted price of $9.58, with delivery every 30 days, 2 months, or 4 months. The page notes HSA/FSA eligibility for qualified customers. The page also lists a 60-Day Money Back Guarantee on all orders, under which Nutricost states it will refund 100% of the purchase price minus shipping and handling if a customer is not completely satisfied, while acknowledging that no supplement works for everyone. Shipping terms state orders are usually processed within 1 to 2 business days, with shipment typically received within 3 to 5 business days, and international customers are responsible for duties, taxes, and customs fees. Returns are accepted 60 days after order date, and free unlimited returns for store credit or exchanges are mentioned, with a $2.98 option for free returns for store credit plus exchange protection. Nutricost states its products are made in the USA using globally sourced ingredients in a GMP-compliant facility. The company says products are tested by an independent, accredited lab to help verify that what is on the label is what is in the bottle. The page describes Nutricost's approach as focusing on quality ingredients, clear labeling, and prices without unnecessary fillers. Customer service can be reached by phone or at support@nutricost.com. Related products shown include Biotin Softgels at 5000 IU and Biotin for Women at 10,000 mcg in 120 capsules.

Product Focus: Hair GrowthAlso covers:Skin
Tier ⓘ
Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$2
Study, Trial or Testing Result SummaryMembersHuman studies

1 of these 13 human studies gave biotin by injection, not by mouth.

This product gives 10,000 micrograms of biotin a day, the 1.25 milligrams that in the main trial, so it counts as a dose. In a 2025 randomized trial of 105 adults, 1.25 milligrams of plant-derived biotin daily for 90 days hair fall, sped hair growth and nails and skin elasticity, with side reported. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

Review Totals and SummaryMembers3,555 reviews
3,555 reviews · IHerb 2,134 · Vitacost 206 · Target 2

Nutricost Biotin 10,000 mcg capsules are generally -received by customers, with about 3555 ratings across stores. reviews with star ratings give either 4 or 5 stars, indicating . **What it did for them** buyers report visible changes, particularly for hair, nails, and skin. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

Biohacker SummaryMembersWhat our biohacker panel says

Biotin is the only ingredient here, and the panel is split but leans toward cautious support. voices push : one calls it overhyped and thinks protein matters , and another says it will fix pattern hair alone, though it can strengthen existing hairs and should be paired with other treatments. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

RAL SummaryMembersThe tier and why

Biotin is at a dose, and a 105-person randomized trial showed hair fall and growth, supported by a smaller controlled trial, though studies lacked a placebo group.

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

More DetailsMembersBody systems · Combine with · Possible side effects

Body systems: Skin, hair and nails. Combine with and possible side are for members.

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

Supplement FactsBiotin 10000 mcg
Supplement Facts
Serving Size 1 Capsule
Servings Per Container 240
Amount Per Serving% Daily Value
Biotin10,000 mcg33,333%

Other ingredients: Rice flour, hypromellose (cellulose) capsule.

Directions: As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.

Label source: Vitacost · Report a label change

Where to BuyNutricost · iHerb · Vitacost
NutricostBuy ↗
iHerbBuy ↗
VitacostBuy ↗

We sell no supplements. Prices change; check the store.

More hair growth productsMembersThe highest ranked for the same goal

Graded October 24, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.