HCG

HCG (human chorionic gonadotropin) is a placental glycoprotein hormone — a heterodimer of a common alpha subunit shared with LH, FSH and TSH and a hormone-specific beta subunit. It is studied in reproductive endocrinology research as an agonist at the luteinizing hormone/choriogonadotropin receptor (LHCGR), including steroidogenesis and gonadal-axis signaling in cell-based and animal models. Supplied as a lyophilized powder; potency is expressed in International Units (IU).