does ghk-cu cause tolerance or reduced efficacy over time Really Work? 40 Years of Research Reviewed GHK-CU aka the beauty peptide.,
Description
Although low toxicity is reported, inhalation or direct eye contact should be avoided
Drew BG, Hamidi H, Zhou Z, Villanueva CJ, Krum SA, Calkin AC, Parks BW, Ribas V, Kalajian NY, Phun J, et al
It contains 0.9% benzyl alcohol as a preservative, thanks to which a single peptide vial can be withdrawn from gradually over days to weeks without the solution being spoiled by contamination
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Take **early in the morning**
