Collagen is a complex structural protein that provides structural support to our skin, joints, bones, and connective tissues. Unfortunately, collagen synthesis decreases as we get older. Our hydrolyzed collagen can provide some of the building blocks our bodies need to produce our own collagen. On top of that, some of these NeoCell supplements include unique combinations of ingredients including hyaluronic acid, vitamin C, and biotin. Hyaluronic acid for skin hydration. Biotin to support hair and nail health. And vitamin C to aid in collagen formation.