There is also some research showing that citric acid with regular use (think three months and 20% concentration) can help sun-damaged skin, increase skin thickness and some nice hydrating things called glycosaminoglycans in the skin
Common topical formulation strengths Cosmetic and compounded topical GHK-Cu products typically range from 1% to 3% by weight
Pickart, who discovered the peptide, a mixture of GHK-Cu and vitamin C suppressed the growth of a highly malignant cancer in mice called sarcoma-180.9 Anti-pain effects GHK-Cu also appears to possess analgesic, or anti-pain, effects
The strong inverse correlation of GSH changes with baseline levels suggest that supplementation has its greatest effect in subjects with the lowest baseline GSH levels. Markers of Oxidative Stress Were Reduced Liposomal Glutathione supplementation significantly reduced the oxidized-to-reduced glutathione ratio, indicating improved antioxidant balance
Pooled 2020-2026 data (12 studies, n=892) report mild erythema (4.2%), pruritus (2.1%), no systemic copper overload (serum levels unchanged)
