The objective of this review is to critically assess the current evidence surrounding their mechanisms of action, clinical indications, efficacy, and safety profiles, with particular emphasis on regulatory and translational considerations
Independent testing of research-grade peptides purchased online has found purity levels ranging from below 50% to over 100% of stated concentration, along with bacterial endotoxin contamination and incorrect peptide sequences
Clean handling, careful storage, and tidy reconstitution keep the process stable
The largest group, CJC-1295, Ipamorelin, Sermorelin, Hexarelin, Tesamorelin, and MK-677, are growth-hormone secretagogues or GHRH/GHRP analogs