Its fast-absorbing texture layers comfortably under moisturizers and sunscreen, making it easy to incorporate into both morning and evening skincare routines
However, research has not confirmed they are safe or effective for this purpose
It converts melanin from its darker form (eumelanin) to a lighter form (pheomelanin), resulting in a lighter skin tone over time
Together, they work synergistically to address the visible signs of aging and enhance skins health and appearance
Cosmetic over-the-counter products containing low concentrations of GHK-Cu have been available for decades
However, a huge amount directly injected into the blood via injection can result in adverse effects like hypopigmented patches, melanoma, reduction of liver glutathione levels, and lightening of the hair colour