AOD-9604 vs Retatrutide.
Quick Verdict
AOD-9604 is a gh fragment primarily researched for fat loss without gh side effects, while Retatrutide is a triple agonist (glp-1/gip/glucagon) studied for superior body recomposition, massive fat loss, metabolic health. A key distinction: Retatrutide has FDA approval status.
Side-by-Side Analysis
| Dimension | AOD-9604 | Retatrutide |
|---|---|---|
| Category | GH Fragment | Triple Agonist (GLP-1/GIP/Glucagon) |
| Mechanism | Mimics GH fat-burning domain. | Multi-receptor activation for appetite suppression, fat oxidation, energy expenditure. |
| Half-Life | ~1 hours | ~6 days |
| Route | SubQ | SubQ |
| Typical Dose | 300–300 mcg | 2000–2000 mcg |
| Frequency | 7x/wk | 1x/wk |
| Evidence Level | Preclinical | Strong |
| Indexed Studies | 18+ indexed | 20+ indexed |
| FDA Status | Research Only | Approved |
| Lowest Price | $49.99 / 5mg via Amino Club | $69.99 / 10mg via Amino Club |
| Per-mg Cost | $10.00/mg | $7.00/mg |
Mechanism of Action Comparison
How AOD-9604 Works
AOD-9604 AOD-9604 is a synthetic fragment of human growth hormone studied for its ability to burn fat without the blood sugar or growth side effects of full GH.
Mimics GH fat-burning domain. Stimulates lipolysis and inhibits lipogenesis by acting on beta-3 adrenergic receptors in fat tissue, without binding to the GH receptor.
How Retatrutide Works
Retatrutide Retatrutide is an investigational triple GLP-1/GIP/glucagon receptor agonist studied in Phase 2 trials, producing the highest weight loss ever recorded in an obesity drug trial at 24%.
Multi-receptor activation for appetite suppression, fat oxidation, energy expenditure. Unique triple agonism at GLP-1, GIP, and glucagon receptors delivers synergistic metabolic effects unmatched by single or dual agonists.
Key Mechanistic Difference
AOD-9604 operates as a gh fragment, while Retatrutide functions as a triple agonist (glp-1/gip/glucagon) — these are fundamentally different pharmacological approaches. Retatrutide has a significantly longer half-life (~6 days) compared to AOD-9604 (~1 hours), which impacts dosing frequency and sustained activity.
Research Evidence
AOD-9604
18 studies- AOD-9604 lipolysis stimulation in preclinical modelsNg et al. demonstrate AOD-9604 stimulates lipolysis and inhibits lipogenesis in adipose tissue without affecting IGF-1 o…Preclinical
- AOD-9604 clinical safety six randomized controlled trialsHeffernan et al.: Pooled analysis of 6 RCTs showing AOD-9604 is well-tolerated with a safety profile similar to placebo …Moderate
- AOD-9604 Phase IIb trial short-term fat reduction12-week Phase IIb trial: 1mg/day AOD-9604 produced 2.6 kg weight loss vs 0.8 kg placebo, with reductions in abdominal fa…Moderate
Retatrutide
20 studies- Retatrutide Phase 2 trial: ~24% weight loss at 48 weeksJastreboff et al. (NEJM): Phase 2 RCT showing 24.2% body weight reduction at 12mg dose over 48 weeks the highest repor…Strong
- Retatrutide Phase 1 safety and dose-dependent weight lossFirst-in-human Phase 1 trial demonstrating dose-dependent weight loss, favorable safety profile, and significant HbA1c r…Moderate
- Retatrutide reduces liver fat (MASLD Phase 2a sub-study)Randomized Phase 2a sub-study (n=98, Nature Medicine 2024): retatrutide 12mg achieved 82.4% relative liver fat reduction…Strong
Vendor Pricing
· Affiliate links · Prices verified 2026AOD-9604
2 vendorsRetatrutide
1 vendorAffiliate disclosure: PeptiDex may earn a commission from purchases via vendor links at no extra cost to you. See our methodology.
Frequently Asked Questions
Can I take AOD-9604 and Retatrutide together?▼
No direct interaction data is available for this specific pair. They target different receptor systems, suggesting they could potentially be combined, but no published protocol validates this combination.
Which has more research evidence — AOD-9604 or Retatrutide?▼
AOD-9604 has 18 indexed studies (highest evidence: Preclinical). Retatrutide has 20 indexed studies (highest evidence: Strong). Retatrutide has a more extensive research base.
What is the price difference between AOD-9604 and Retatrutide?▼
At current verified vendor prices, Retatrutide starts at $7.00/mg while AOD-9604 starts at $10.00/mg. Prices vary by vendor and vial size — see the full vendor comparison below.
Which is better for fat loss — AOD-9604 or Retatrutide?▼
Both are researched for fat loss. AOD-9604 addresses this via fat loss without gh side effects. Retatrutide approaches it through superior body recomposition, massive fat loss, metabolic health. The optimal choice depends on your specific research protocol and which mechanism aligns with your objectives.
Is AOD-9604 or Retatrutide FDA-approved?▼
Retatrutide has FDA approval (or is derived from an FDA-approved compound). AOD-9604 is a research compound without FDA approval for human use. FDA status reflects regulatory evaluation — not necessarily superiority for all research applications.
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Research Use Only — Not Medical Advice
This comparison is provided for educational and research purposes only. It does not constitute medical, prescribing, or treatment advice. Clinical data cited here is sourced from published peer-reviewed trials and FDA labels. Consult a qualified healthcare professional before making any decisions about medications or research compounds. PeptiDex is an informational resource and does not sell pharmaceutical products.