is nad or glutathione better NAD+/ NADH ratio, and the glutathione/oxiglutathion oxidative stress How NAD+ and Glutathione Together

J Clin Med 9:3120 Matsueda S, Itoh K, Shichijo S (2018) Antitumor activity of antibody against cytotoxic T lymphocyte epitope peptide of lymphocyte-specific protein tyrosine kinase

GBD 2021 Adult BMI Collaborators

One notable trial in 20 subjects compared the effects of the retinoid tretinoin, which is about 10x more potent than retinol, to the effects of GHK-Cu on dermal procollagen synthesis, epidermal proliferation, and inflammation

Headline percentages mean nothing if the formulation chemistry has not preserved the active peptide through the supply chain 1

Beyond skin-related effects, GHK-Cu is being studied for its anti-inflammatory and antioxidant activity, helping reduce oxidative stress and support healthier cellular function

Those are the products we ordered and tried for ourselves