Collagen? Collagen is found in all of our connective tissues, tendons, ligaments and bones, and its sole purpose is to maintain their strength, structure and elasticity. However, our body’s natural collagen production begins to decline by about 1-2% around the age of 25, which is why we recommend introducing an ingestible collagen to your diet. What are the benefits? Original Collagen Peptides with Hyaluronic Acid + Vitamin C is a Vital Proteins’ exclusive product. Collagen supports healthy hair, nails, skin and joints**; Vitamin C helps promote the body’s natural collagen production and promotes a more youthful appearance**. Our collagen contains 18 amino acids and is characterized by the predominance of glycine, proline and hydroxyproline.