Copper is a trace element found in our cells. Peptides are small fragments of proteins and some have an avid affinity for copper, to which they bind very tightly. The resulting compound including a peptide and a copper atom has been known as a copper peptide.

Copper peptides can be used for skin regeneration in many ways for better skin care. They have anti-oxidant properties by stimulating the antioxidant enzyme superoxide dismutase, and neutralise the damaging free radicals in the skin. They promote the degradation of abnormally large cross-linked collagen, while promote the synthesis of normal collagen, as well as elastin, proteoglycans, glycosaminoglycans and other elements of the skin matrix. The result is a particularly significant effect in promoting a faster, better and cleaner healing, and skin remodelling.

Copper peptides therefore improve fine wrinkling; elasticity and firmness of skin; facial pigmentation and sun damage. Skin thickness is also increased in some studies.

In one small study, copper peptides promoted collagen synthesis in the intact skin, and yielded a stronger stimulation of collagen production than tretinoin or vitamin C.

Because of the healing enhancement, and also their anti-inflammatory effect, copper peptides augment the results of the skin rejuvenation treatments based on controlled skin injury, such as laser resurfacing, dermabrasion and peels. There are skin care products containing copper peptides taken from soy proteins.

Although copper peptides are a promising skin treatment with a good safety profile, exaggerated use can have an opposite effect and should be cautioned.