Cell viability assay For cell viability assay, cells were planted in 96-well plates (34 10 3 per well) after indicated treatment, then incubated with 10% CCK-8 reagent at 37 C for 2 h
However, as reassuring as all of this is, there are a couple of things to remain mindful of: Copper toxicity Because GHK-Cu contains copper, it does pose a potential risk of copper toxicity,12 the symptoms of which include abdominal pain, vomiting, chest pain, chills, cough, fever, general weakness, anemia, burning sensations, tremors, and a metallic taste in the mouth.13 The risk is small, as the concentrations of copper in the peptide are typically well within safe parameters, but its good to be aware of it
& Huang, C
For optimal results, use daily in your morning and/or evening routine
Tripeptides such as GHK-Cu have an established safety record in topical and cosmetic applications, showing low cytotoxicity and reduced skin irritation compared with other copper compounds, and acceptable tolerability in clinical cosmetic studies [23, 74, 93]
One-way analysis of variance was used to determine the significance of differences
