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Heres where Ill be completely straight with you, because it protects your results and your wallet: The visible benefits are real: Clinical studies show GHK-Cu can improve skin density, tighten mild laxity, and fade sunspots by accelerating keratinocyte turnover
Available exclusively for licensed research and laboratory use
Jang SW, Liu X, Yepes M, Shephard KR, Miller GW, et al
The most common side effects reported in clinical trials include mild to moderate nausea, vomiting, constipation, and reduced appetite
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