You're getting 10,000 mcg of **Biotin** per capsule — double the top of the typical supplement range (1,000–5,000 mcg) and over 300x the RDA. This is a mega-dose format clearly aimed at hair, skin, and nail support, and it delivers far more than you'd find in any multivitamin.
Here's the caveat that matters for you: biotin supplementation has strong clinical evidence only for people with an actual biotin deficiency, which is rare. In non-deficient individuals, there are no well-designed RCTs proving that high-dose biotin improves hair growth or nail strength. The marketing outpaces the science on this one.
Also worth knowing: high-dose biotin can interfere with certain lab tests, including thyroid panels and troponin (a cardiac marker). If you're getting bloodwork done, let your doctor know you're taking this so your results aren't skewed.
BioStacks
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.