HGH Fragment 176-191 is a modified portion of the human growth hormone (HGH) molecule, specifically amino acids 176 to 191. It is designed to promote fat loss without the broader growth-promoting effects of full-length HGH.

This fragment stimulates lipolysis (fat breakdown) and inhibits lipogenesis (fat formation), making it popular in research related to obesity and metabolic disorders. Unlike full HGH, it does not significantly affect insulin levels or muscle growth. It is used experimentally and in performance enhancement but is not approved for medical use.