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Peptides like GHK-Cu (Copper Peptides) stimulate collagen and elastin synthesis, promoting firmer, smoother, and more youthful skin
Long-term human safety data beyond 6 weeks is lacking, leading to conservative recommendations for cycling
The compound lacks approved human clinical trials, meaning its entire safety profile derives from preclinical animal studies that do not directly translate to human physiology
Third, multi-pathway activation that addresses both upstream and downstream targets in the healing cascade
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