SPECIMEN #SPRING-V
Verified
BeautySpring Valley
Biotin 5000 mcg
$5 at Walmart for 120 doses of a vitamin you almost certainly don't need. Systematic reviews: biotin doesn't help hair unless you're deficient (rare). It does mess up your thyroid blood tests though. At least the waste is cheap.
5.0/10
DECENTBiotin at 5000mcg is at the diminishing returns threshold. The bigger issue: biotin supplementation only helps if you're actually deficient, and most people get adequate biotin from diet. Evidence for hair/skin/nails benefits in non-deficient people is weak. It also interferes with lab tests (troponin, thyroid, hormones) which is a real safety concern many consumers don't know about. Extremely cheap but solving a problem most people don't have.
1 ingredientSoftgels120 servings
Evidence
7.0
Dosing
10.0
SynergyN/A (single ingredient)
What We Like
- 120 softgels for very low cost.
- If you ARE biotin deficient, this works.
Watch Out For
- Systematic reviews: no benefit for non-deficient people.
- Interferes with thyroid and cardiac lab tests.
- 5000mcg is 16,667% of daily value.
- No other beauty nutrients.
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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