AOD-9604

AOD-9604 is a modified fragment of human growth hormone designed to target fat loss by activating the fat-burning portion of the GH molecule (176-191). It was developed for obesity treatment and promotes fat breakdown without raising blood sugar or systemic GH levels.

AOD-9604 is not FDA-approved for fat loss or medical use. It is classified as a research compound and is intended for scientific investigation only.

What is AOD-9604?

AOD-9604 is a modified fragment of human growth hormone (GH), specifically amino acids 176–191. It was developed to isolate the fat-burning effects of GH without its growth-promoting or blood sugar-altering properties. Research has focused on AOD-9604's potential to stimulate lipolysis (fat breakdown) and inhibit lipogenesis (fat storage), especially in stubborn areas like visceral or abdominal fat.

Potential Benefits Shown in Studies

Stimulating fat breakdown (lipolysis)
Inhibiting fat formation (lipogenesis)
Reducing body fat, especially abdominal fat
Supporting metabolism without impacting blood sugar
Aiding in weight management and body recomposition
Improving cartilage repair and joint health in some studies
Acting without significantly influencing IGF-1 or insulin

Mechanisms of Action

Unlike full-length GH, AOD-9604 works independently of the IGF-1 axis. It:

Targets beta-adrenergic and GH receptors in adipose tissue
Stimulates breakdown of stored fat (lipolysis)
Blocks formation of new fat cells (lipogenesis)
Does not affect insulin or blood sugar levels, making it metabolically safe
Can be administered orally or via injection in research settings

Because it avoids many of the side effects associated with growth hormone, AOD-9604 is considered a safer fat-targeting peptide for study.

Research Highlights

Fat Loss Without Systemic GH Activity

Clinical studies show AOD-9604 reduces abdominal and visceral fat without elevating IGF-1 or causing systemic GH-like effects.

Source: Ng, F. M. et al. (2000). AOD-9604 reduces fat mass in obese subjects – PubMed.

No Impact on Glucose or Insulin

Unlike GH, AOD-9604 has no negative effect on insulin sensitivity or blood glucose, making it suitable for overweight individuals and those with metabolic concerns.

Source: Johnston, C. et al. (2008). AOD-9604 is safe and does not alter glucose metabolism – PMC.