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The peptide was observed to have the potential to prevent changes in monoamine oxidase type A (MAO-A) and serotonin levels
GHK (endogenous glycyl-L-histidyl-L-lysine) GHK-Cu (Copper Peptide) References: 1
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Researchers in this study suggested glutathione may have an antiaging agent
Those avoiding acids or retinoids : A suitable option for people who cannot tolerate exfoliating or retinoid-based actives
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