Luteinizing Hormone (LH) is a crucial glycoprotein hormone produced by the pituitary gland, specifically the anterior pituitary. It plays a significant role in regulating the reproductive system in both males and females. LH is composed of two subunits: alpha and beta. The alpha subunit is common to other pituitary hormones like FSH (Follicle Stimulating Hormone), while the beta subunit confers biological specificity.