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4% GHK-Cu Face and Neck Serum by Neurogan Health We chose a 4% concentration of Copper Tripeptide-1 for our Face and Neck Serum after discovering it strikes the perfect balance between efficacy and gentleness
If you have a known copper allergy (sometimes identified through reactions to copper jewelry), patch test any GHK-Cu product on your inner forearm for 48 hours before applying it to your face
4 weeks 2 vials Roughly one vial every two weeks
For a deeper dive into choosing quality supplements, read our guide on how to choose the best glutathione supplement in India
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