Figure 1: Biotin Benefits: The Essential Supplement for Healthy Hair, Skin & Nails Biotin, also known as vitamin B7 or vitamin H, is a water-soluble B-complex vitamin essential for numerous metabolic functions, notably in maintaining healthy hair, skin, and nails. Over the past decade, biotin has gained popularity as a widely used supplement to address hair thinning, brittle nails, and dermatological conditions. Today, it ranks among the most searched vitamins for beauty-related concerns. Biotin functions as a coenzyme in carboxylation reactions critical to carbohydrate, fat, and protein metabolism (Mock, 2017). Although biotin deficiency is rare, it can manifest with dermatologic symptoms such as alopecia, dermatitis, and nail brittleness (Zempleni et al.,...