The inflammatory data is consistent
These characteristics support its use in ameliorating obesity-related gastrointestinal dysfunction, helping patients establish regular eating patterns, reducing gastrointestinal irritation from overeating, and alleviating postprandial discomfort such as bloating and indigestion
But since peptide coupling agents are described as immune sensitizers, it stands to reason that the risk even if its small exists for everyone.18 Copper peptide uglies Anecdotal reports suggest that some people may experience worsened skin aging, instead of anti-aging, after using products with GHK-Cu, a rare concern dubbed copper peptide uglies. While this isnt necessarily a safety issue, it is a (again, rare) potential negative effect of using copper peptide products
Moreover, the conditions in the gut (e.g., diet, inflammation) under which this glucosinolate metabolism by bacteria occurs or not are not well understood
Chan, H
PMC 4020417