If you’re looking to bulk up, there’s no better way to do it than with Hygetropin. This powerful hormone consists of 191 amino acids, making it one of the most potent formulas on the market. In humans, it’s produced in the hypophysis and released in response to stimuli like training, sleep, stress, and low blood sugar levels. Once freed, HGH (human growth hormone) itself doesn’t have a direct effect. Instead, it stimulates the liver to produce and release insulin-like growth factors and somatomedins. These growth factors then cause various effects on the body. However, the liver can only produce a limited amount of these substances, so the effect is also limited.