Reproductive & Melanocortin Research

Reproductive & Melanocortin Research Peptides

This category covers two related areas of receptor research: gonadotropin signaling in reproductive endocrinology, and the melanocortin receptor family (MC1R–MC5R). Gonadotropin and melanocortin receptors are both class A G-protein-coupled receptors that signal largely through Gs and cAMP, so assay formats and readouts overlap between the two areas.

HCG 6,000iu (human chorionic gonadotropin) is a glycoprotein hormone that binds the LH/choriogonadotropin receptor (LHCGR). It is used to study cAMP-driven steroidogenesis in Leydig and granulosa cell models. On the melanocortin side, Melanotan 2 10mg is a cyclic synthetic analog of alpha-MSH with broad activity across melanocortin receptors. It is used in MC1R pigmentation-pathway research and in central MC3R/MC4R studies. PT-141 10mg (bremelanotide) is a related cyclic heptapeptide studied mainly for MC4R signaling in the central nervous system. Our Melanotan 2 vs PT-141 comparison sets out the structural and receptor-selectivity differences between the two.

Every peptide here is supplied at 99%+ purity and third-party tested by an independent laboratory. Certificates of analysis are published on our COA page, and orders ship in 2 business days.

For laboratory research use only; not for human consumption.