Distributed under the brand names Geref and Geref Diagnostic, it gained FDA approval in 1997 as a treatment for growth hormone deficiency but was discontinued in 2008 not out of concern for safety or lack of efficacy, but because of manufacturing difficulties.2 3 Yet it remains available in compounded form with a prescription from a licensed healthcare provider
5 Tissue Repair Research Experimental wound models have suggested that GHK-Cu may support angiogenesis, fibroblast migration, extracellular matrix organisation and collagen deposition throughout the healing process
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Retinols regulate cell turnover, promote effective exfoliation, prevent acne, even discoloration, control oil, smooth fine lines and wrinkles, unclog pores and so much more, he adds