Conservative maintenance may use 1mg
10.1136/bmj.322.7301.1500 BMJ
External resources Regenerative and Protective Actions of the GHK-Cu Peptide (National Institutes of Health) GHK Peptide as a Natural Modulator of Multiple Cellular Pathways (National Institutes of Health) Human Skin Penetration of Copper Tripeptide (National Institutes of Health) Copper Peptide GHK-Cu Overview (Wikipedia) For researchers serious about optimizing copper peptide protocols, SeekPeptides offers comprehensive resources, evidence-based guides, and a community of experienced users who have navigated these exact concentration questions
Potential Health Benefits of Glutathione Although research for glutathione supplementation may seem promising, further studies are needed to confirm some of its benefits, says Simran Malhotra, MD, a triple board-certified doctor in lifestyle medicine and internal medicine, who is also a medical reviewer for Everyday Health
These studies highlight its ability to reduce melanin production and improve skin tone over time
IMPORTANT NOTE: We always recommend getting this from a doctor