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Which glutathione is the best for skin
How This Works GHK-Cu is a naturally-occurring copper tripeptide the sequence glycyl-L-histidyl-L-lysine (GHK) bound to a copper(II) ion
Quinn et al., 2010
In order to lighten darkened skin or melasma, I recommend a course of Glutathione and vitamin C intravenous drips until the skin or pigmentation lightens then a reducing dose regularly will maintain your lovely clear even tone skin
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