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( Wiley Online Library ) Where the evidence is still a bit thin Topical anti-wrinkle outcomes: a 2025 review on topical GHK as an anti-wrinkle peptide points out practical limitations (like stability and penetration) and highlights that clinical studies are surprisingly limited compared to how widely its promoted
The practical implication is that GHK-Cu addresses structural skin aging (collagen loss, elasticity decline) while neurotransmitter-modulating peptides address dynamic wrinkles (expression lines)
The right protocol, the right product, and the right team make all the difference
Individual Responsiveness Each person's body may react differently to peptide combinations, making it difficult to predict outcomes or potential side effects
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