Three compounds studied in skin, wound and cosmetic research models. GHK-Cu, and the GLOW and KLOW blends that contain it.
GHK-Cu is the copper tripeptide with the longest research history in this space, and its record is genuinely mixed: a 1992 randomised trial found no benefit over vehicle, a finding we publish on the product page rather than omit. The GLOW and KLOW blends have not been tested as combinations in any published study; their evidence base is the individual components. If you are evaluating this category, read the limitations sections before the mechanism sections.Each compound page carries a specification block listing lot number, chromatographic purity, percentage of stated label claim, identity confirmation, analytical method and testing laboratory — or states plainly that the certificate is pending. We publish which it is rather than rounding up.All compounds in this category are supplied strictly for laboratory research use. They are not for human or veterinary use, not for consumption, and not approved by the FDA for any purpose.
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