COLLAGEN PROMOTES HEALTHIER SKIN, HAIR AND NAILS
Collagen is a major component of your skin. It plays a role in skin structure, as well as in elasticity and hydration. As you age, your body produces less collagen, leading to dry skin and the formation of wrinkles. However, several studies have shown that supplements containing collagen help slow the aging of your skin by reducing wrinkles and dryness. Collagen supplements promote the production of other proteins that help structure your skin, including the proteins elastin and fibrillin.
Additionally, collagen supplements promote the production of the proteins that hair and nails are made of. This will increase the strength of your nails by preventing brittleness. Additionally, it will help your hair and nails grow longer.
 
COLLAGEN PROMOTES HEALTHIER MUSCLES, JOINTS AND BONES
Collagen is the main protein needed to help maintain healthy tendons, muscles, connective tissues, joins, arteries and veins.   
 
These supplements work by stimulating your body to produce collagen on its own. Studies suggest that collagen supplements help boost muscle mass in people with sarcopenia, the loss of muscle mass that happens with age. Researchers have suggested that supplemental collagen may promote the synthesis of muscle proteins such as creatine, as well as stimulate muscle growth after exercise.