glutathione prevents cancer Catabolism of extracellular supplies cysteine to support tumours Frontiers | Metabolism of Amino

However, people with certain health conditions, such as HIV, Crohns disease and other disorders that impair nutrient absorption, are at increased risk of having low levels

Beyond heavy metals, glutathione conjugates with numerous other toxins including pharmaceutical metabolites, particularly acetaminophen, environmental pollutants such as benzene and volatile organic compounds, pesticide residues, and alcohol metabolites that would otherwise damage cellular structures

Lin'kova, N.S., et al., Peptide Regulation of Skin Fibroblast Functions during Their Aging In Vitro

This makes GHK-Cu scientifically plausible as a wound-repair and regenerative signal

Be careful while using the copper peptides