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Given the relatively small sample size, the study may have been underpowered to detect modest but biologically meaningful changes

If irritation persists, discontinue use and consult with a healthcare professional

Dark spots visibly fade Consistent use over weeks shows continued fading of existing dark spots and a clearer overall complexion

doi: 10.31491/apt.2020.03.014

During hyperkalemia potassium secretion must be enhanced in order to prevent cardiac conductance and neuromuscular complications

For most people, topical application of GHK-Cu purchased from a reputable source, paired with microneedling, is the most accessible and the safest avenue