Life Extension Biotin, 600 mcg, 100 Capsules

Life Extension's Biotin supplement provides 600 mcg of biotin per capsule, a dosage that aligns with common daily recommendations for this water-soluble B vitamin. The manufacturer states it is formulated to support healthy hair and nails by aiding in keratin production, a structural protein for these tissues, and notes its role in cellular energy processes as a cofactor for metabolic enzymes.

This product is part of Life Extension's line of science-backed supplements, with the company emphasizing over 40 years of research into formulations. It is certified Gluten-Free and Non-GMO, which are standard for this category but noted here as they are explicitly highlighted by the manufacturer. The capsules use common excipients like microcrystalline cellulose and dicalcium phosphate, and the packaging contains 100 servings for a 100-day supply at the recommended one capsule daily.