Purvana Max™ Hair, Skin and Nails formula from Wellgenix promotes thicker and fuller hair, healthy skin and strong nails. The structures of hair, skin and nail tissue are very similar and require almost identical raw materials to grow and remain healthy. Collagen is the most abundant protein in the integumentary system, while elastin allows your skin to stretch like a spring and return to its original shape. Sulfur bonds hold these tissues together and silicon supports their structures, which is why MSM and silicon have been included in this formula. Purvana also features B vitamins, with high levels of biotin because it is essential for the growth of healthy hair, skin and nails.