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#2 in Hair, Skin & Nails

Nature's Bounty Biotin 10,000 mcg

by Nature's Bounty

"The #1 selling biotin supplement — 250 softgels for under $14"

Amazon Rating
4.6/5
Reviews
85,000+
Price Range
$10-14
Servings
250 softgels
GMP Certified
Our Editorial Rating
7.0
Good
FormSoftgel
SubcategoryBiotin
View on Amazon

Overview

Nature's Bounty Biotin 10,000 mcg delivers a high-potency dose of biotin (vitamin B7) in a rapid-release softgel. Biotin is essential for keratin production — the protein that makes up hair, skin, and nails. While biotin deficiency is rare, supplementation at 2,500-10,000 mcg has been shown to improve hair thickness and nail strength in those with suboptimal levels. With 85,000+ Amazon reviews, this is the most popular biotin supplement in America.

Key Ingredients

IngredientAmount
Biotin (Vitamin B7)10,000 mcg

Pros & Cons

What We Like

  • #1 selling biotin supplement (85,000+ reviews)
  • 250 softgels per bottle
  • Under $0.06 per softgel
  • Rapid-release softgel
  • Supports hair, skin, and nail health

What Could Be Better

  • 10,000 mcg is 33,333% of daily value (very high)
  • Can interfere with lab tests (thyroid, troponin)
  • Benefits limited to those with actual deficiency
  • Excess biotin is excreted (water-soluble)

Who Is This For?

Best For

  • Hair thinning support
  • Nail strengthening
  • Those with biotin deficiency
  • Budget biotin seekers

Not Ideal For

  • Those getting regular blood tests (interferes with results)
  • People with adequate biotin intake
  • Those expecting dramatic hair regrowth

Our Verdict

7.0/10 — Good

Nature's Bounty Biotin is the most popular and affordable biotin supplement. Important warning: biotin at this dose can interfere with lab tests — always tell your doctor you're taking biotin before any blood work. Benefits are most noticeable in those with actual biotin deficiency.

Alternatives to Consider

No direct alternatives listed for this product yet.