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ghk-cu hair growth study 2023 Ghk Cu Injection Vs Topical For Koppā Beauty | Science-backed hair
Description
Even absent a clear injury, if a patient later learns their doctor subjected them to an unapproved drug without proper disclosure, they might pursue action for breach of trust or battery (unauthorized treatment)
It was based on the finding that there are important structural and steric constraints on most of the actions of opiates

Beyond wound and skin research, AHK-Cu has appeared in studies examining hair follicle biology

10.1038/nrgastro.2013.35 Nat Rev Gastroenterol Hepatol

It does not mean it is FDA-approved