Biotin conditioner is a hair care product designed to strengthen, thicken, and promote healthier hair growth by nourishing follicles with Vitamin B7 (biotin), often combined with collagen, keratin, natural oils (like coconut or argan), and other extracts (like coffee or green tea) to reduce shedding, add volume, detangle, and improve shine for fine, thin, or damaged hair. It works by fortifying hair strands, improving scalp health, and supporting the hair's natural growth cycle, leaving hair feeling fuller and more manageable.