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Author contributions GDC and DM: designed the experiments
If you are pregnant, breastfeeding, or on a medication consult a healthcare practitioner before using this product
Combining GHK-Cu with strong actives like high-strength retinoids or low-pH acids in the same routine can increase irritation
This article explains how long bacteriostatic water shelf life, what can shorten its stability, and best practices for lab storage
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