Improve skin health

Collagen is an essential component of your skin. It helps to strengthen the skin, as well as increase elasticity and hydration. As you get older, your body produces less collagen, which causes dry skin and wrinkles. Several studies, however, have shown that collagen peptides or collagen supplements may help slow the aging of your skin by reducing wrinkles and dryness.

One review of 11 studies, mostly focusing on women, discovered that taking 3–10 grams of collagen per day for an average of 69 days improved skin elasticity and hydration. These supplements may work by stimulating your body's natural collagen production. Collagen supplements may also stimulate the production of other proteins that help structure your skin, such as elastin and fibrillin. There are also numerous anecdotal claims that collagen supplements help prevent acne and other skin conditions, but these are not backed up by scientific evidence.