Copper peptides like GHK-Cu are extensively researched and found in luxury skincare and haircare formulations
For a quick summary, see this quote from one study : RESULTS: As one of the most powerful antioxidants in the skin, vitamin C has been shown to protect against photoaging, ultraviolet-induced immunosuppression, and photocarcinogenesis
This is a serious injury and source of ankle pain
Mitigation strategies include strict sun protection during treatment, using moderate rather than aggressive microneedling depths, incorporating niacinamide which helps prevent PIH, considering patch testing before full-face treatment, and being prepared to pause treatment if significant PIH develops
We selected the most abundant clones from the respective libraries, aML5, aMD4 and aMD5 (named after the anti-Met L- or D-number of the cloned peptide), for further characterization (Supplementary Table 2)