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Skin Penetration and the Stratum Corneum Question The practical question in topical peptide research is whether the compound can cross the stratum corneum in sufficient quantities to reach the dermal layer
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No other current peptide stack covers this many pathways
Additionally, experts recommend avoiding harsh actives (e.g., retinoids, alpha-hydroxy acids, salicylic acid, etc.), vitamin C, or any active exfoliants while using GHK-Cu peptides
10.3748/wjg.v23.i33.6016 16 FitzpatrickL
