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M., Goyal, A., Jha, P
Apply a few drops to clean, dry skin (Face Tonic) or damp/dry scalp (Hair Tonic) Gently massage for about 30 seconds Face Tonic - wait 30 seconds before layering other products Hair Tonic - no rinsing needed, style as usual Use morning, evening, or both Consistency matters most with GHK-Cu serum
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This process extends the shelf life to 36 months and protects the delicate phospholipid structure from the risks of peroxidation or particle growth over time
In contrast, standard sterile water lacks preservatives and is typically limited to single-use applications
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