Oral glutathione supplementation elevates body stores of glutathione and brightens skin in adults
Using vitamin C in the morning capitalizes on its sun-protective antioxidant benefits, while evening copper peptide application supports overnight repair processes
This origin should be understood as a biochemical research background, not as evidence of clinical use, consumer suitability, or therapeutic validation
A 2016 comparative study published in Nature Scientific Reports demonstrated that GHK-Cu produced no cytotoxicity to human keratinocytes at concentrations up to 5,800 micromolar over 72 hours and did not induce inflammatory biomarkers, unlike other copper compounds tested alongside it
Topical GHK-Cu creams are excellent for directly targeting skin concerns, such as fine lines and texture
It could also be injected directly into muscle, making it possible to treat pernicious anemia more easily