Hydra-Vital Hyaluronic Acid is a natural component of the body. We find the acid in the joints, the connective tissues and the vitreous humour fluid of the eye. We also find it most abundantly in the skin. The Hydra-Vital Hyaluronic Acid binds 1000 times its weight in water which therefore makes it the ultimate natural moisturizer. It also plays a role in transporting nutrients to the body. Vitamin C contributes to normal collagen function of the cartilage.