SPECIMEN #NATROL-B
Verified
BeautyNatrol
Biotin 10000 mcg Maximum Strength
10,000 mcg is 33,333% of daily value. Your body just pees out the excess. 5,000 mcg does the same job. And heads up: high-dose biotin can mess with blood test results, so tell your doctor before labwork.
6.0/10
GOOD10,000 mcg biotin is at the diminishing returns threshold. The ingredient only scores 7 because biotin deficiency is rare and most people don't benefit from supplementation. This mega-dose is 4x the optimal and won't deliver better results than 2,500 mcg for hair/skin/nails. Also interferes with lab tests.
1 ingredientTablets100 servings
Evidence
7.0
Dosing
10.0
SynergyN/A (single ingredient)
What We Like
- Very affordable. Pennies per day.
- 100 servings per bottle.
- Biotin is well-studied for hair and nail support in deficient individuals.
Watch Out For
- 10,000 mcg is 33,333% of daily value. Overkill for most people.
- Excess biotin is just excreted (water-soluble = expensive pee).
- Can interfere with blood test results (thyroid, troponin).
- Standalone biotin without cofactors is incomplete.
What We Analyzed
Verified Supplement Facts
Every dose checked against clinical research
We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.
1 ingredients analyzed
Source: Official product page
Ingredient Breakdown
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
In our database (click to learn more) Not yet reviewed
Our Analysis
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