Hair, Skin and Nails by Dr. Mecola is a targeted beauty-from-within formula designed to support the structural foundations of healthy hair, skin, and nails. Each daily capsule delivers a focused blend of biotin, solubilized keratin, and low-density hyaluronic acid—nutrients that play key roles in strength, elasticity, and hydration at the tissue level. Rather than masking concerns at the surface, this formula works internally to help replenish proteins, vitamins, and polysaccharides essential for normal structure and function.