For those who want to grow their hair, nails, skin, or bones, Roncuvita Natural & Plant Based Biotin and Collagen Powder is the ideal dietary supplement. Collagen powder is a type of supplement that is made from the protein collagen. It is said to be helpful in supporting the growth of tissue and helping to improve joint health. Roncuvita Collagen powder can also be helpful in reducing wrinkles. Source: https://www.isopentoday.com/product/roncuvita-natural-and-plant-based-biotin-powder-collagen-builder/