Sytropin is a specialized blend of homeopathic HGH, growth factors, and potent amino acid releasers designed to stimulate greater production of human growth hormone by the anterior pituitary gland in the brain. All Sytropin ingredients comply fully with the FDA's GRAS listing requirements for HGH products, and have been shown to have no known complications or side effects. For a complete listing of Sytropin's ingredients, click here.