BioSil Beauty Bones Joints, with clinically proven ch-OSA, is specifically formulated to help nourish your body's 3 beauty proteins and restore them to more youthful levels. Collagen "plumps out" skin, removing wrinkles and stops them from forming. In addition, collagen is essential for strong healthy bones and joints. Keratin is the protein that's packed into your hair shaft. It gives your hair thickness, body, strength, and elasticity. Plus, keratin gives your nails strength. Elastin gives your skin its ability to stretch and "bounce back" stopping fine lines and wrinkles. Collagen is essential for beautiful skin, hair and nails as well as healthy bones and joints. But starting at age 21, collagen diminishes 1% per year. By age 30, the signs become visible. For years, scientists searched for a method to give the human body the ability to regenerate its own collagen. But it took Natural Factors BioSil's landmark discovery of ch-OSA to make it a reality. Its capacity to generate collagen with your own DNA fingerprint makes ch-OSA the genuine breakthrough in collagen.