Fragment 176-191
Also known as HGH Frag 176-191
A fragment of human growth hormone (amino acids 176–191) with lipolytic activity — an older relative of AOD-9604.
Definition
Fragment 176-191 is an isolated portion of the HGH molecule selected for its fat-metabolism properties. It shares structural similarity with AOD-9604, which contains the same region but includes an additional disulfide bridge for improved stability. The clinical evidence supporting this peptide is comparatively limited and older than data available for the more modern AOD-9604 variant.
How Meto uses it.
Not part of Meto's catalogue, and neither is AOD-9604. Included here as a reference definition for readers investigating HGH-fragment lipolytics.
Safety notes
- Superseded by AOD-9604 in modern clinical use
- Not prescribed at Meto
- Not a complete list — your clinician reviews your full history
Not a complete list — your clinician reviews your full history, labs and medications during intake. Nothing here replaces that.
Read More
AOD-9604AOD9604
A modified fragment of human growth hormone (amino acids 177–191) that stimulates fat metabolism without affecting blood glucose or IGF-1.
MechanismLipolysis
The biological breakdown of stored fat into free fatty acids — the mechanism targeted by AOD-9604 and Tesamorelin.
MechanismGrowth HormoneGH
A pituitary-secreted hormone that drives protein synthesis, fat metabolism and tissue repair — released in pulses, peaking at night.
$149 panel.
A clinician reads it in 24 hours.
Order the Peptide Readiness Panel, draw at a Quest or LabCorp near you, and your clinician sends back a matched protocol with a confidence score.