Human Growth Hormone (HGH) is a peptide hormone secreted by the anterior pituitary gland, which plays an important role in the body's growth, development and metabolism. The main components of HGH include follicle stimulating hormone (FSH) and luteinizing hormone (LH), in which FSH is a key factor in promoting follicle development, while LH works collaboratively with FSH to promote follicle maturation and eventual ovulation (see related literature)