AOD-9604
The Fat-Burning GH Fragment
A modified fragment of growth hormone (176-191) that promotes fat loss without the negative effects of full GH, including no impact on blood sugar.
Research Compound
About AOD-9604
AOD-9604 is a modified fragment of human growth hormone consisting of amino acids 176-191 with an added tyrosine at the N-terminus. It was developed to provide the fat-burning benefits of growth hormone without its negative effects on blood sugar or cell proliferation. AOD-9604 stimulates lipolysis (fat breakdown) and inhibits lipogenesis (fat formation) without affecting IGF-1 levels or causing the issues associated with full GH therapy. It's also being studied for cartilage repair and osteoarthritis treatment.
Mechanism of Action
AOD-9604 mimics the lipolytic region of growth hormone, activating beta-3 adrenergic receptors in adipose tissue to stimulate fat breakdown. Unlike full GH, it doesn't bind to GH receptors responsible for cell proliferation or glucose regulation. This makes it a targeted fat-loss agent without the metabolic side effects. AOD-9604 also appears to stimulate cartilage repair by promoting chondrocyte activity.
How AOD-9604 Works in Your Body:
- Target Receptors: AOD-9604 binds to specific receptors that trigger downstream signaling cascades related to its primary benefits.
- Physiological Response: The body responds by modulating natural processes—whether hormone release, tissue repair, or cellular signaling—without replacing endogenous function.
- Timeline: Effects typically begin within 1-2 weeks, with optimal results seen over the recommended protocol duration.
Dosing Protocol
Frequency
Once daily
Timing
Morning on empty stomach, or before fasted cardio
Duration
8-12 week cycles
Important Notes
250-300mcg subcutaneously. Some protocols use up to 500mcg. Best taken fasted and 30+ minutes before eating. Can be combined with other GH secretagogues.
Clinical Research
3 studies on AOD-9604
Fat Loss Study
AOD-9604 reduced body fat in obese subjects without affecting IGF-1, glucose, or insulin levels.
Regulatory Peptides
Lipogenesis Inhibition
AOD-9604 inhibited both lipogenic and lipid-synthesizing enzymes in adipose tissue.
Journal of Endocrinology
Cartilage Repair
AOD-9604 stimulated proteoglycan and collagen synthesis in human cartilage explants.
Osteoarthritis and Cartilage
AOD-9604 in Practice
Who AOD-9604 is for
Adults pursuing body recomposition who want targeted adipose mobilization without the GH-related side effects (insulin resistance, water retention, joint discomfort). Often used in cosmetic and metabolic clinics as an adjunct to caloric deficit and resistance training.
Who should avoid it
Pregnant or nursing women, those with active malignancy, and anyone expecting it to replace caloric deficit — AOD-9604 is a metabolic adjunct, not a standalone fat-loss drug.
Clinical Context
AOD-9604 is a synthetic 16-amino-acid fragment of the C-terminus of human growth hormone (residues 177-191) with an added tyrosine. It was developed in the 1990s by Metabolic Pharmaceuticals as an oral anti-obesity drug. It mimics the lipolytic and anti-lipogenic actions of GH without the diabetogenic, growth, or IGF-1 effects. Phase IIb trials in 534 obese patients showed dose-dependent fat loss vs placebo, but the program was discontinued before Phase III due to commercial considerations rather than safety. AOD-9604 has GRAS (Generally Recognized As Safe) status in some jurisdictions but is not FDA-approved as a drug.
Common Mistakes to Avoid
Using it without caloric deficit
AOD-9604 enhances lipolysis but cannot create energy imbalance on its own. Without a 300-500 kcal/day deficit, results will be invisible.
Expecting GH-like effects
AOD-9604 lacks the muscle-building and recovery properties of full GH or GH-stimulating peptides. If you want both fat loss and lean mass support, pair it with ipamorelin/CJC-1295.
Stopping at 4 weeks
Visible recomposition takes 12-16 weeks of consistent dosing combined with training and diet.
Important Safety Information
Medical Disclaimer: The information provided about AOD-9604 is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before starting any new supplement or peptide protocol.
Research Status: While AOD-9604 has shown promising results in research studies, many peptides are still being studied and may not be approved by regulatory bodies like the FDA for specific uses. The research cited represents ongoing scientific investigation.
Individual Variation: Responses to peptides vary significantly between individuals. What works for one person may not work for another. Side effects, while generally mild, can occur and should be monitored closely.
Quality & Sourcing: If you choose to use peptides, ensure you obtain them from reputable, tested sources. Peptide quality, purity, and proper storage are critical for safety and efficacy.
Legal Considerations: Peptide regulations vary by country and jurisdiction. Some peptides may require a prescription or may have restrictions on their use. Research the laws in your area before obtaining or using peptides.