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Many patients use them on different times of day (for example, GHK-Cu in the morning and tretinoin/niacinamide at night) or on alternate nights, depending on skin tolerance
Product Quality: The efficacy of a GHK-Cu product can vary significantly based on its synthesis quality, formulation vehicle, pH, packaging, and storage
Contaminated, mislabeled, or adulterated products could cause harm that has nothing to do with the peptide itself
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Acting directly on adipose tissue without affecting insulin sensitivity or IGF-1 production
When tissue is damaged by injury, inflammation or oxidative stress extracellular matrix proteins (notably collagen and SPARC) are broken down, releasing peptide fragments including GHK
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