HGH Fragment 176-191 bodybuilding overview HGH Fragment 176-191, also known as AOD 9604, is a synthetic peptide derived from the human growth hormone (HGH). It is a modified form of the amino acid sequence 176-191 of the HGH polypeptide. This particular fragment is believed to possess fat-burning properties and has gained popularity among bodybuilders and athletes. HGH Fragment 176-191 Application in bodybuilding …