Hi-Tech Somatophen - Growth Hormone Stimulator. Somatophen is a combination of anterior pituitary peptides, sequenced glycoamino acids, and other HGH-releasing agents that provides an extraordinary, effective replacement therapy that is affordable. Somatophen's active components have been shown in clinical studies to have the following profound impact on HGH release. Remarkably, within 90 minutes of administering the combination of active constituents in Somatophen, HGH levels increased up to 700% above normal levels. Also, even eight hours after taking this mixture, HGH levels were still elevated as much as 300%.