Overview Human growth hormone (hGH, somatotropin) is a 191-amino acid polypeptide hormone synthesized and secreted by somatotroph cells in the anterior pituitary gland. Secretion is pulsatile — occurring primarily during slow-wave sleep and in response to exercise, hypoglycemia, and fasting …
In the full monograph
- What it is, and how it works
- What the evidence shows — randomized trials, observational data, animal studies, graded and cited
- Dose, form, and timing
- What to expect, and how soon
- Who should be careful, and what to check first
- The verdict
MEMBERS
Read the full monograph
Members get every monograph in the library, the research assistant, and the stack tracker — with a 30-day money-back guarantee. Not ready? Start free with the Proven Supplements Starter Guide.