Experimental data indicate that GHK-Cu can influence collagen and glycosaminoglycan synthesis, modulate proteoglycan and chondroitin sulfate turnover, and recruit fibroblasts, immune cells, and endothelial cells to sites of tissue injury
Retatrutide adds glucagon on top, which cranks up energy burning through brown fat and a higher metabolic rate
20 In 2017, Paul and Brady came to similar conclusions that all four forms appear to be effective, although they point out research that shows that tissue retention of cyano-B12 is lower and urinary excretion higher than that of the other forms, although this statement is based on a review from 1965
Journal of drug delivery, 2011
If the recommended serving size feels like too much for your system, try starting with half the dose for the first week