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Description
GHK-Cu vs Rosemary Oil Compare GHK-Cu copper peptide hair serum and rosemary oil for scalp care, hair routines, ingredient differences and long-term consistency

10a, b)

doi: 10.1016/S0020-1383(13)70013-5

This ensures the peptide is fully dissolved and stabilized, guaranteeing the concentration matches the calculation provided by the Tirz dilution calculator