The B-vitamin cofactor your follicles use to build keratin. Fully committed dose, locked into the formula.
2,500 mcg is the exact dose from the brittle-nail studies — the literature number, not the 10,000 mcg label decoration most brands use. It ties to collagen and keratin on the panel: cofactor plus building blocks.
Every batch of ATTRACT is assayed by an independent, US-based third-party lab for identity, potency and contaminants, and manufactured in a cGMP (21 CFR 111) registered facility. The certificate is published per batch. Always transparent with dosing and ingredients.
Biotin is one of 20 clinically-dosed actives in one Wild Berry scoop — collagen, creatine, NMN, keratin, a full gut stack and more — designed to replace 20+ beauty supplements with one.
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