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10.12968/jowc.2022.31.2.162 110 StejskalJ
Barrier dysfunction due to unavoidable injuries or allergic responses enhances the release of IL-1, leading to the increased formation of cytokine proteins [183, 184]
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If your skin barrier is already damaged from over-exfoliation, eczema flares, or aggressive treatment protocols, adding any new active, including GHK-Cu, can cause irritation
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