Biotin Shampoo - Biotin and Collagen Shampoo, Volumizing Hair Thickening Shampoo, Sulfate Free Argan Oil Shampoo for Women & Men

A volumizing biotin and collagen shampoo from Tree To Tub designed to add body and thickness to fine hair. Creamy lather and sulfate-free formula feel gentle on the scalp while argan oil helps smooth strands. Suitable for anyone seeking fuller-looking hair—formulated for both women and men, with a lightweight rinse-out finish.