Copper Peptide Products Versus Retinoids and Cosmetic Actives Cu-GHK has been compared with vitamin C and retinoic acid in a small collagen-production context summarized in a topical peptide review, where collagen increased in 70% of Cu-GHK-treated participants versus 50% with vitamin C and 40% with retinoic acid after one month [2]
This keeps your routine uncomplicated and avoids any layering conflicts with morning vitamin C
Disclaimers THIS PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY
The safest editorial rule is direct: describe what researchers examined, cite the source, and avoid expanding the finding beyond the model
Bril V, Benatar M, Andersen H, Vissing J, Brock M, Greve B, et al
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