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Jan 3, 2026 Understanding what happens when stopping GHK-Cu requires examining the peptide's mechanism of action influencing collagen synthesis, skin regeneration, antioxidant effects, and anti-inflammatory properties to determine whether these changes represent temporary stimulation requiring ongoing supplementation or permanent improvements persisting after treatment cessation
Lack of verification: no independent body routinely checks gray-market products
doi.org/10.2174/1381612824666180712110447 Bock-Marquette, I., et al
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