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The optimal pH range of blue copper peptide (GHK-Cu) in skin care products should be maintained at neutral, that is, the pH value is between 5.0 and 6.5 to maintain its structural integrity and biological activity
In the AM, you're set to embrace the day with the resilience of copper peptides, while the PM allows retinol to spin its magic while you snooze
doi: 10.1155/2008/164273 178 MeadBTomarevS
Cai Y, Huang Y, Wang Y, Lin C, Qiu L, Wei H (2025) Lactobacillus johnsonii GLJ001 prevents DSS-induced colitis in mice by inhibiting M1 macrophage polarization via gut microbiota-SCFAs axis
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