ghk-cu hair growth study copper peptide 2% Serum for and Scalp Care – Seraphime GHK-Cu for Hair Growth: Protocols
Description
It's not in hydroxocobalamin

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The amino-acid sequence is the same pentadecapeptide

Any combination claim would require direct evidence for the exact compounds, ratio, formulation, route, dose, analytical method, safety profile, study population, and condition being studied
