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This product is supplied exclusively for laboratory research and is not intended for human or veterinary use
But efficacy hinges on two factors: a clinically meaningful concentration ( 2% GHK-Cu is the floor in most studies) and a delivery method that bypasses the stratum corneum
Get a quick fix with a glutathione injection
However, glutathione does not change your genetic skin colour
Look for threads where a community member purchased a product, submitted it to an independent lab (Janoshik is frequently used in the Reddit community), and posted the result publicly
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