Kigtropin AQ is a form of synthetic human growth hormone used for treating growth hormone deficiency, short stature, wasting associated with AIDS, and bodybuilding purposes. It is administered by injection and works by stimulating the liver to produce insulin-like growth factor-1 which promotes growth and repair, regulates metabolism of lipids, proteins, and carbohydrates. It is stored in a refrigerator and must be injected subcutaneously under the guidance of a healthcare provider.