When chelated to copper(II) to form GHK-Cu, the intact complex has an estimated plasma half life in the range of 30 minutes
Cherchi A, Lai C, Angelino F, Trucco G, Caponnetto S, Mereto PE, Rosolen G, Manzoli U, Schiavoni G, Reale A, Romeo F, Rizzon P, Sorgente L, Strano A, Novo S, Immordino R (1985) Effects of l-carnitine on exercise tolerance in chronic stable anginaa multicenter, double-blind, randomized, placebo controlled crossover study
(PubMed) Holmes MV, Newcombe P, Hubacek JA, et al
Insulin is the hormone responsible for transporting sugar from the bloodstream to the cells where it can be used as fuel
Check the Labeling and Intended-Use Copy Legitimate laboratory suppliers clearly state that these items are designed exclusively for research