The copper tripeptide, GHK-Cu, is one of the most well-examined peptides and is a naturally occurring plasma peptide that significantly declines during human aging and. In cosmetic applications, GHK-Cu is used in anti-aging, anti-wrinkle, after-sun, skin renewal, skin moisturizer, and hair growth stimulating products.
The in vitro research effects of this carrier peptides is to deliver copper to the skin to activate enzymatic wound-healing pathways, while the desired, in vivo, effect is to make the skin more smooth, thick, and firm due to increased collagen production.
GHK-Cu has been proven to stimulate collagen and decorin production and improving wound healing and tissue generation. It has also been established that GHK-Cu improves the condition of aging skin and hair, and possesses antioxidant and anti-inflammatory effects.