AOD-9604 Dosage Guide, Benefits & Side Effects

AOD-9604 Dosage Guide, Benefits & Side Effects

AOD-9604, the HGH fragment 176-191, targets fat metabolism without raising IGF-1. Review trial data, dosing, and body composition benefits.

Chemical Makeup

16

Amino Acids

AOD-9604

Tyr

Position 1

Leu

Position 2

Arg

Position 3

Ile

Position 4

Val

Position 5

Gln

Position 6

Cys

Position 7

Position 8

Ser

Position 9

Position 10

Glu

Position 11

Gly

Position 12

Position 13

Position 14

Position 15

Phe

Position 16

As seen on

AOD-9604 Dosage Guide for Weight + Fat LossAOD-9604 Dosage Calculator

AOD-9604 is a small fragment of growth hormone that helps promote fat burning. It needs to be mixed with a special combination of water and a mild acid to fully dissolve.

Vial size

10 mg

Bacteriostatic water

2 mL BAC water

Dosing

500 mcg

Frequency

Daily

Cycle

8 weeks

Benefit

Weight + Fat Loss

What is AOD-9604?

AOD-9604 is a small, lab-made fragment of natural human growth hormone, tweaked to keep only the fat-burning part of the molecule. It encourages the body to break down fat and stop storing more of it, without the blood sugar changes or overgrowth effects that come with full growth hormone. It has been tested in human trials for weight loss and is also studied for joint and cartilage support.

Weight

Research targets include appetite regulation, fat metabolism, and body composition.

Metabolic

Research targets include glucose regulation, insulin sensitivity, and energy metabolism.

aod

Is AOD-9604 FDA approved?

AOD-9604 is not an FDA-approved drug. It is intended for research purposes only and is not approved for human consumption, diagnostic, or therapeutic use.

Research Use Only

AOD-9604 has not been evaluated by the FDA for safety or efficacy in humans.

No Clinical Oversight

Not manufactured under FDA-regulated quality or clinical standards.

Unregulated Sourcing

Purity, dosing, and sourcing are not verified through FDA testing or oversight.

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How Does AOD-9604 Work?

It attaches to fat-burning receptors on fat cells, setting off an internal signal that activates the enzyme responsible for breaking stored fat down into usable fuel. It does this without touching the growth-hormone or blood-sugar systems, which is why it doesn't cause the side effects associated with full growth hormone.

Targets fat cells

Binds beta-3 adrenergic receptors found on adipocytes.

Releases stored fat

Triggers the enzyme that breaks triglycerides into usable fatty acids.

Skips the side effects

Works without touching growth hormone or blood sugar pathways.

AOD-9604 Targeted areas

How to reconstitute AOD-9604

The materials you'll need and step-by-step instructions for safely mixing AOD-9604 with bacteriostatic water.

Materials needed

Your AOD-9604 vial (lyophilized)

Alcohol swabs

Bacteriostatic sterile water

3 mL syringes (Luer Lock tip)

25G or 27G needles (Luer Lock). Other gauges may also be acceptable.

Sharps container (optional)

Remove the caps

Sanitize the rubber stoppers

Attach the needle

Draw the bac water

Pull back on the plunger to draw your desired volume of bacteriostatic water. If you overfill, just push the excess back in until you reach the right marker on the syringe.

Insert the needle into the AOD-9604 vial

With the bac water in your syringe, insert the needle into the AOD-9604 vial at a slight angle to avoid pressure buildup.

Release the water gently

Let the water run gently down the side of the vial. Don't inject it forcefully.

Swirl to dissolve

Avoid shaking. Gently swirl, flip, and roll the vial to dissolve the powder.

Check for full dissolution

Cap, dispose, and store

How to Store AOD-9604

The dry powder lasts up to two years in the freezer. Once mixed with liquid, keep it in the fridge and use within 30 days, and avoid leaving it out at room temperature for more than a few days.

Lyophilized Storage

Store at -20°C, stable up to 24 months.

Reconstituted Storage

Refrigerate at 2–8°C and use within 30 days.

Handling Notes

Avoid room-temperature exposure beyond 72 hours.

What Are the Benefits of AOD-9604?

What research says it may help with, and how it works in the body.

fat loss

Reduces the creation and storage of fat in fat tissue.

Does not raise blood sugar, reduce insulin release, or make the body more resistant to insulin.

In obesity studies, it increased fat burning and blood glycerol levels (a marker of fat breakdown) and reduced body weight, without affecting blood sugar control.

joint health

In osteoarthritis studies, combining it with hyaluronic acid improved cartilage regrowth.

Works better for joint health when combined with hyaluronic acid than either does alone.

What Are the Side Effects of AOD-9604?

Who should avoid it, warning signs to watch for, and what to know before combining it with other compounds.

Who Should Avoid It

Pregnancy or breastfeeding

WADA prohibited - athletes subject to testing must avoid

Stop Right Away If You Notice

Severe injection site reactions or infection signs

Unusual swelling or persistent redness

Allergic reactions (rare)

Any concerning or unexpected symptoms

Milder Signs to Watch For

How Long Should a AOD-9604 Cycle Last?

This breaks down how long a typical AOD-9604 cycle runs and what research suggests happens at each stage. Research shows that staying on a peptide continuously, without a break, may make it less effective over time.

That's why most research protocols build in a break between cycles, often called a washout period, to let the body reset before starting again.

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Cheat Sheets Featuring AOD-9604

See how AOD-9604 fits into a broader research stack with these free downloadable cheat sheets. Each one includes reference dose ranges, dosing frequency, and half-life for every peptide it covers. For research purposes only.

78 peptides

14 peptides

19 peptides

AOD-9604 Research References

It is an experimental compound

AOD-9604 is an experimental compound

Increased beta-3 adrenergic receptor expression comparable to lean mice.

n.d.

Significantly reduced lipogenic activity and increased lipolytic activity.

Combination accelerated cartilage regeneration in osteoarthritis models.

AOD-9604 reduced body weight without hyperglycemia through enhanced fat oxidation.

Frequently Asked Questions About AOD-9604

Straight answers on reconstitution, dosing, and safety, everything you need to research with confidence. For research reference only.

What is AOD-9604?

AOD-9604 is a synthetic peptide fragment corresponding to amino acids 176-191 of the C-terminus of human growth hormone (HGH). It was originally developed by Australian company Metabolic Pharmaceuticals to isolate the fat-metabolizing effects of HGH while avoiding HGH's growth-promoting and insulin-disrupting effects. It is sold today strictly as a research chemical and is not an approved drug.

How is AOD-9604 believed to work?

Preclinical research suggests AOD-9604 stimulates lipolysis (breakdown of stored fat) and inhibits lipogenesis (formation of new fat), largely through interaction with beta-3 adrenergic receptors on fat cells. Studies in beta-3 receptor knockout mice showed no fat-loss response to the peptide, supporting this as the likely mechanism. Unlike full HGH, it was designed not to affect blood glucose, insulin sensitivity, or IGF-1 levels, and animal studies have not shown the growth-promoting or diabetogenic effects associated with HGH.

Does AOD-9604 actually work for fat loss in humans?

The evidence is mixed. An earlier 12-week human trial reported modest weight loss versus placebo (about 2.6 kg vs. 0.8 kg), but a larger, well-powered 24-week Phase IIb trial in 536 subjects failed to meet its primary weight-loss endpoint, and Metabolic Pharmaceuticals discontinued development for obesity in 2007. Some proponents argue the negative trial used an oral formulation with poor bioavailability and that injectable dosing might perform differently, but no large-scale injectable efficacy trial has been published. Overall, human efficacy data for meaningful fat loss are weak, even though the safety data from those same trials were favorable.

What dosage and administration schedule do research protocols typically use?

Clinical trials tested doses in the range of roughly 0.25-1 mg per day via subcutaneous injection, with courses running from single doses up to 24 weeks. In current research and enthusiast use, common protocols cite daily subcutaneous doses around 300-500 mcg, often taken on an empty stomach (e.g., morning or pre-workout), sometimes with cycles of several weeks. There is no FDA-approved dosing standard, and any dosing information should be understood as coming from research literature or research-supplier guidance, not clinical prescribing guidelines.

What side effects have been reported?

In the clinical trials that were conducted, AOD-9604 had a safety and tolerability profile similar to placebo overall, with mild-to-moderate headache being the most commonly reported adverse event at a rate comparable to placebo. Injection-site reactions (redness, swelling, itching) are the most frequently reported issue with subcutaneous use, and some users report transient mild nausea or bloating when starting. No participants in trials developed antibodies to the peptide, and no significant effects on glucose, insulin, or IGF-1 were observed. As with any unregulated research product, purity and dosing accuracy from a given supplier are not independently verified, which is itself a safety consideration.

How do you reconstitute and store AOD-9604?

Lyophilized (freeze-dried) AOD-9604 is typically reconstituted with bacteriostatic water, or a dilute (0.1-1%) acetic acid solution if it does not dissolve readily in plain water. The solvent is added gently against the vial wall (not directly onto the powder), and the vial is swirled or slowly rotated rather than shaken. Unreconstituted lyophilized powder should be kept refrigerated or frozen and protected from light. Once reconstituted, the solution is generally kept refrigerated at 2-8°C and used within about 2-4 weeks; for longer storage, some protocols recommend freezing single-use aliquots at -20°C.

Is AOD-9604 legal to buy and use?

AOD-9604 is not FDA-approved for any human use and cannot legally be compounded or sold as a drug for human administration in the United States (the FDA declined to add it to the 503A bulk substances list in December 2024). It is sold by suppliers labeled 'for research use only, not for human consumption,' which is the basis on which it is legally distributed. It is not classified as a scheduled controlled substance, but it is prohibited in professional sports under WADA anti-doping rules. Laws vary by country, and buyers are responsible for checking local regulations.

How is AOD-9604 different from HGH Fragment 176-191?

AOD-9604 and 'HGH Fragment 176-191' both refer to the same core amino acid sequence (residues 176-191 of human growth hormone) and are frequently used interchangeably in the peptide research community. AOD-9604 is technically a modified/stabilized version developed by Metabolic Pharmaceuticals with an added amino acid substitution for stability, but many vendors and users treat the two names as synonyms for the same fat-fragment peptide.