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ghk-cu peptide injection vs pill copper tripeptide-1 Copper Serum with 1% GHK-Cu peptide, Argireline and Matrixyl 3 – Dr. Brenner Labs ghk cu peptide injection vs
Description
Clinical studies focus on treatment efficacy, typically in controlled settings where subjects are trained in how to use the devices

That does not automatically make the claims true

Aging (Albany NY) 2019;11, 771-782, doi:10.18632/aging.101787

And the growth hormone whose production they are alleged to increase is natural, making testing even harder
