Keratin helps give hair and nails strength, structure, and resilience to protect against damage. As we age, we experience a decline in the production of keratin causing our hair and nails to become brittle, discolored or dull, as well as leading to splitting or cracking. Our Biotin keratin supplement replenishes the hardening protein that builds nails and the keratin in our hair shaft, resulting in hair that looks and feels full and glossy. Reduction in collagen protein leads to weaker bones, fragile nails, brittle hair and dry skin. Simply Herbal’s plant-based collagen pill helps you restore youthful skin, hair, nails, bones, tendons, joints, and gut health.