The normal wild-type enzyme, G6PD B, is found in most Caucasians, Asians, and a majority of blacks
Drucker, General Hospital, Ontario) were backcrossed onto the C57BL/6 genetic background and wild-type littermate were bred in-house and fed standard chow diet
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
PLoS One 14 (4), e0214368