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Depending on the serum's formulation, you might observe benefits beyond skin whitening, such as increased hydration, minimized pores, and a smoother complexion

Second, the components have wildly different pharmacokinetics KPV is a tripeptide with a very short half-life, GHK-Cu is a small copper complex cleared quickly, and the larger peptides behave differently again so a single injection cannot deliver all four in a coordinated way even in principle

The review also covered three therapeutic research strategies: direct GSH depletion (leading to ferroptosis or enhanced chemotherapy sensitivity), indirect approaches targeting the tumour microenvironment, and prodrug strategies utilising elevated tumour GSH for drug activation

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