Can GHK-Cu cause copper toxicity?

This site's GHK-Cu citations do not measure copper toxicity. They report fibroblast collagen synthesis in culture, wound-chamber work in rats, and a 2015 review of topical cosmetic studies describing firmer skin. GHK-Cu is permitted as a cosmetic ingredient in the US, UK, Australia, and Canada, and it is not an approved drug. Injected use is far less studied. A cosmetics classification is not a counted copper-toxicity rate for a research-chemical injection. This FAQ does not invent one. Full record at /compounds/ghk-cu.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of healing and recovery peptides. BPC-157, TB-500, GHK-Cu, and the tissue repair family, including what actually has human data.