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Metabolic / Fat Loss A modified hGH fragment once trialled for obesity that did not gain approval as an obesity medicine. Not approved as a medicine in Australia; treated as a research compound.

AOD-9604

Also known as: Anti-Obesity Drug 9604, hGH fragment 176-191 analog

AOD-9604 is a modified fragment of human growth hormone that was once trialled for obesity. It is not approved as a medicine in Australia.

Category
Metabolic / Fat Loss
Reported half-life
Not well established
Common forms
Research-grade lyophilised powder (not approved), Research-grade vials (not approved)
Research status
A modified hGH fragment once trialled for obesity that did not gain approval as an obesity medicine. Not approved as a medicine in Australia; treated as a research compound.
Last updated
21 June 2026

Claimed effects

The following effects are reported or claimed by users and in early research. They are not established medical facts and many are not supported by large human trials.

  • Reported in early research to be investigated for fat-loss effects
  • Reported to influence fat metabolism without growth-hormone-like effects on blood sugar
  • Reported in some studies to be explored for cartilage or joint research

How it is reported to work

AOD-9604 is described as a synthetic analogue of the C-terminal fragment of human growth hormone (residues 176-191). It is proposed to stimulate fat breakdown and limit fat formation while reportedly lacking the broader growth-promoting effects of full growth hormone. These mechanisms are reported from research and are not established in an approved therapy.

Background

AOD-9604 is a modified fragment of human growth hormone that was investigated for obesity in earlier clinical research. It did not progress to approval as an obesity medicine and is not approved as a medicine in Australia. This page is educational and is not medical advice; it does not recommend use.

What the research shows

AOD-9604 was reported in early research to be of interest for fat metabolism, and some studies explored other applications. These are reported research findings, not established outcomes, and the compound was not approved for obesity. Evidence in humans is limited.

FeatureReported in research
OriginhGH C-terminal fragment analogue
Original focusObesity
ApprovalNot approved as a medicine

What people use it for (reported)

In online discussion, AOD-9604 is reported to be of interest for fat-loss goals because of its origin as a growth-hormone fragment. As an unapproved research compound it has no approved indication in Australia. Material described online as “AOD-9604” is not a verified, approved product, so its identity, purity and contents cannot be assumed, which is why independent testing is discussed in this community.

Things to be aware of

Because AOD-9604 is unapproved, its long-term safety in humans is not established, and the limited reported effects may not reflect what is sold informally. Reported effects on this page are not confirmed facts; they summarise what research and discussion describe. Anyone with weight or metabolic concerns should consult a qualified healthcare professional for individualised guidance. This article is educational, does not recommend any dose, and does not tell anyone to obtain or use it.

Reported positives & side effects

Compiled from research and community reports. These are reported outcomes, not guarantees or medical advice, individual experiences vary widely.

Reported positives

  • Reported interest in fat breakdown without growth-hormone-like effects on blood sugar
  • Reported in early research to be explored for fat-loss support
  • Reported not to raise IGF-1 the way full growth hormone is said to
  • Reported in some studies to be examined for cartilage or joint applications

Common side effects

  • Injection-site redness or irritation reported
  • Headache reported by some users
  • Fatigue or low energy reported
  • Mild nausea reported

Rare / serious side effects

  • Allergic or hypersensitivity reactions reported
  • Unverified effects from contaminated grey-market product
  • Unknown long-term metabolic or endocrine effects

Reported misuse & overdose risks

What has been reported to happen with overuse, excessive dosing, or long-term misuse of AOD-9604. Listed so you can make an informed decision, not to suggest any use is safe.

  • Reported use of unverified grey-market product with no approved human indication
  • Reported stacking with growth-hormone secretagogues or actual GH for amplified fat loss without oversight
  • Reported dosing well above amounts used in past trials in pursuit of faster results
  • Reported reliance on it as a sole weight-loss method in place of medical care

Reported results timeline

Roughly how long people report it takes to notice effects. A general guide from reports, not a promise, and not advice. Any reported fat-loss effects are described as gradual, emerging over weeks to months rather than quickly.

  1. First effects

    Subtle appetite or energy shifts reported within the first week or two

  2. Noticeable change

    Reported gradual fat-loss support alongside diet and exercise

  3. Clear results

    Reported body-composition changes over months

Commonly reported dosing & protocol

Reported figures only, NOT a recommendation or dosing advice. These are numbers people report using, compiled for education so you can make an informed decision. We do not advise anyone to take AOD-9604. Many peptides are not approved for human use in Australia. Speak to a qualified healthcare professional.

Commonly reported dosing for AOD-9604
RouteSubcutaneous injection
Typical reported doseReported as roughly 300 mcg per day
FrequencyReported as once daily, often dosed in the morning before food
Cycle lengthReported in multi-week blocks alongside diet and exercise; no standardised cycle exists

Reported reconstitution (mg → units)

A 5 mg vial + 2 mL bacteriostatic water = 2.5 mg/mL. A 300 mcg (0.3 mg) dose is about 0.12 mL = 12 units on a U-100 insulin syringe.

Work out the units for your vial → Calculator

Commonly reported as daily subcutaneous use over multi-week blocks alongside diet and exercise; reported patterns vary widely and are not standardised. This is reported information, not advice.

Best used with / commonly stacked with

Combinations people report using together. Reported, not recommended, stacking can increase risks.

CJC-1295

Reported combined with GH secretagogues to support fat-loss goals

Ipamorelin

Reported paired for GH-axis support alongside fat metabolism

HGH Fragment 176-191

Reported discussed together as related GH-fragment fat-loss compounds

Safety notes

AOD-9604 is not an approved medicine in Australia and its long-term safety in humans is not established. Reported effects come from limited research. Anyone considering weight-related treatment should consult a qualified healthcare professional rather than relying on unapproved compounds.

References

  1. PubMed, AOD-9604 obesity research
  2. PubMed, hGH fragment fat metabolism