The Growth Hormone Test Kit utilizes GH antibodies to identify real growth hormone (somatropin) in GH products. It is incredibly accurate. This also means that it is not fooled by common GH-elevating peptides, such as GHRP-2, GHRP-6, and Hexarelin, which are widely used to make GH counterfeits. These peptides are much cheaper than somatropin, but may still result in serum growth hormone elevations. They may be able to fool a blood test for growth hormone level, but not ROIDTEST™.