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AOD-9604

Research Use
Also known as hGH fragment 176-191

Get a source-linked, educational explanation from this profile.

Complete Research Guide

Open each section for the available evidence. Gaps are stated rather than inferred.

Overview

AOD-9604 is listed as metabolic / lipolytic.

  • •Fat metabolism
  • •Weight management
  • •Cartilage repair (off-label)

Regulatory status: Not FDA-approved; TGA-approved (Australia, discontinued); research use.

Structure & Properties

Compound: AOD-9604; also known as hGH fragment 176-191.

Pharmacologic class: Metabolic / Lipolytic.

Known delivery routes: Subcutaneous.

Sequence, molecular weight, salt form, and excipient details are formulation-specific and are not listed unless verified by a manufacturer or laboratory COA.

How It Works

C-terminal fragment of hGH — activates fat-specific β3-adrenergic receptor; promotes lipolysis without GH's anabolic/diabetogenic effects; possible cartilage regeneration via VEGF.

  • •Selective lipolysis without GH side effects
  • •No insulin resistance signal
  • •No IGF-1 elevation
Human Research

Evidence grade: Pre-clinical / Observational

Evidence is primarily preclinical or observational; human effectiveness and long-term safety are not established.

Laboratory Research

Phase II/III completed (failed primary obesity endpoint)

Preclinical findings describe biological plausibility, not proven benefit in people. Animal and laboratory doses do not translate directly to human use.

Processing & Interactions

Timing and exposure

Once daily fasted (morning) SubQ. Wait 30 min before eating.

Potential interactions and combinations to avoid

  • •Redundant stacking with full GH or GHRPs

Absorption, half-life, metabolism, and clearance can vary by formulation and route. Use prescribing information when an approved product exists.

Safety & Precautions

Known or reported risks

  • •Failed Phase III obesity endpoint
  • •Limited long-term human data

Contraindications

  • •Pregnancy
  • •Hypersensitivity
  • •Bleeding disorders or anticoagulant therapy without physician guidance (injection-site haematoma)
  • •Active skin infection, cellulitis, or lipohypertrophy at intended injection sites
  • •Inability to maintain sterile technique or safe sharps disposal
  • •Not FDA-approved for human therapeutic use — no verified purity, sterility, or potency standards
  • •Immunocompromised or transplant patients (unverified sterility and immunogenicity risk)
  • •Concurrent participation in drug-tested sport (WADA prohibited or non-cleared substance)
  • •Known hypersensitivity or prior reaction to this compound or any excipient/diluent
  • •Pregnancy, attempting conception, or breastfeeding unless prescribed and monitored by a physician
  • •Children and adolescents with open growth plates (unless under specialist endocrine care)
  • •Active or recently treated malignancy without oncology clearance
  • •Use without a confirmed diagnosis, baseline labs, and licensed clinical supervision

Unknown long-term toxicity should be assumed where controlled human data are limited. Seek urgent care for a severe or unexpected reaction.

Administration & Studied Formulations

Reference range: 300–600 mcg/day

Frequency: Once daily (fasted)

Cycling: 8 weeks on / 4 weeks off.

Subcutaneous (SubQ)

Default route for most research and therapeutic peptides — best absorption for reconstituted powder.

31G × 5/16" insulin syringe (U-100). 100 units = 1 mL. Pinch skin at abdomen (2" from navel), outer thigh, or love handle. Insert at 45–90°. Rotate sites daily to prevent lipohypertrophy. Alcohol-swab site, air-dry, inject slow, hold 5 sec.

Dosing information is educational context, not a personal recommendation. Approved products must follow their label and prescriber instructions.

Applications & Related Therapies

Potentially complementary measures

  • •Standalone or paired with caloric deficit + training

Clinical use should account for diagnosis, approved alternatives, nutrition, activity, sleep, rehabilitation, current medicines, and appropriate monitoring.

Cases, Considerations & Ethics

Decision framework: establish the clinical goal, confirm evidence quality and legal status, screen contraindications and interactions, compare approved alternatives, define monitoring and stopping criteria, and use shared decision-making with a licensed clinician.

Case evidence: individual reports cannot establish safety or effectiveness and should not outweigh controlled trials.

Ethics: informed consent should distinguish established care from experimental use, disclose uncertainty and cost, avoid overstated claims, and never substitute research products for medically necessary care.

What is AOD-9604?

In plain words

AOD-9604 is a small, modified piece of human growth hormone studied for fat metabolism and weight management. Animal research suggests it may help fat cells break down stored fat and make less new fat. Human trials have not shown reliable weight-loss benefits, and long-term safety data are limited.

Technical definition

AOD-9604 is a synthetic 16-amino-acid peptide derived from the C-terminal region of human growth hormone, consisting of residues 177–191 with an added N-terminal tyrosine. Preclinical studies suggest effects on lipolysis and fat synthesis involving β3-adrenergic signaling, but direct β3-receptor activation has not been established, and its mechanism differs from classical growth hormone signaling. It is an investigational compound that is not FDA-approved; human obesity trials have not established meaningful weight-loss efficacy.

Function

Primary
Fat metabolism · Weight management
Secondary
Cartilage repair (off-label)
Mechanism
C-terminal fragment of hGH — activates fat-specific β3-adrenergic receptor; promotes lipolysis without GH's anabolic/diabetogenic effects; possible cartilage regeneration via VEGF.
Evidence
Pre-clinical / Observational
Research
Phase II/III completed (failed primary obesity endpoint)

Dosing

Range
300–600 mcg/day
Frequency
Once daily (fasted)
Route
Subcutaneous

Recommended Time of Day

Morning fasted, 30+ min before breakfast.

See “Timing & Interactions” below for full fasted/fed circumstances, what to avoid combining, and what pairs well.

Administration & Technique

Subcutaneous (SubQ)
Default route for most research and therapeutic peptides — best absorption for reconstituted powder.
Device31G × 5/16" insulin syringe (U-100). 100 units = 1 mL.
TechniquePinch skin at abdomen (2" from navel), outer thigh, or love handle. Insert at 45–90°. Rotate sites daily to prevent lipohypertrophy. Alcohol-swab site, air-dry, inject slow, hold 5 sec.

Injection & Application Sites

Front
Back
Subcutaneous (SubQ)
  • Abdomen — 2 in (5 cm) away from the navel, either side. Fastest, most consistent SubQ absorption.
  • Flank / love handle — Lateral fat pad above the hip. Good rotation site when the abdomen is tender.
  • Outer thigh — Upper outer quadrant, a hand-width below the hip. SubQ pinch at 45°.

Diagram is a general illustration, not a medical instruction. Rotate sites every injection, keep 1 in (2.5 cm) between recent sites, and avoid scars, moles, bruises and the navel area.

Cycling

8 weeks on / 4 weeks off.

Timing & Interactions

When to take
Once daily fasted (morning) SubQ. Wait 30 min before eating.
Do not combine with
  • ·Redundant stacking with full GH or GHRPs
Complements
  • ·Standalone or paired with caloric deficit + training

Storage & Reconstitution

Powder (Pre-Reconstitution)
Lyophilized powder: refrigerate 2–8°C for up to 24 months, or freeze at –20°C for extended storage. Keep sealed, desiccated, and protected from light.
After Reconstitution
After reconstitution with bacteriostatic water, refrigerate at 2–8°C and use within 28 days. Discard if cloudy, discolored, or precipitated.
Notes
Do not freeze after reconstitution — freeze/thaw cycles degrade most peptides.
Full BAC water & reconstitution guide →How to read a COA →

Reconstitution Calculator

Concentration
2.50 mg/mL
Volume per dose
0.100 mL
Insulin syringe
10.0 units (U-100)

1 mL = 100 units on a standard U-100 insulin syringe. Draw to the nearest 0.5 unit and confirm dosing with a clinician before injection.

Your Notes

Your Notes

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Benefits

  • ·Selective lipolysis without GH side effects
  • ·No insulin resistance signal
  • ·No IGF-1 elevation

Risks

  • ·Failed Phase III obesity endpoint
  • ·Limited long-term human data

Contraindications

  • ·Pregnancy
  • ·Hypersensitivity
  • ·Bleeding disorders or anticoagulant therapy without physician guidance (injection-site haematoma)
  • ·Active skin infection, cellulitis, or lipohypertrophy at intended injection sites
  • ·Inability to maintain sterile technique or safe sharps disposal
  • ·Not FDA-approved for human therapeutic use — no verified purity, sterility, or potency standards
  • ·Immunocompromised or transplant patients (unverified sterility and immunogenicity risk)
  • ·Concurrent participation in drug-tested sport (WADA prohibited or non-cleared substance)
  • ·Known hypersensitivity or prior reaction to this compound or any excipient/diluent
  • ·Pregnancy, attempting conception, or breastfeeding unless prescribed and monitored by a physician
  • ·Children and adolescents with open growth plates (unless under specialist endocrine care)
  • ·Active or recently treated malignancy without oncology clearance
  • ·Use without a confirmed diagnosis, baseline labs, and licensed clinical supervision

Regulatory

Not FDA-approved; TGA-approved (Australia, discontinued); research use

Veterinary Use (Pets)

Fragment of GH used in canine and equine weight-loss and joint-support protocols.

Dogs (Canine)
Dose2–5 mcg/kg once daily fasted
RouteSubQ
UseObesity, osteoarthritis adjunct.
Horses (Equine)
Dose500 mcg per horse daily
RouteSubQ
UseMetabolic syndrome, joint support.
Full veterinary reference →
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Educational reference only. Not medical advice. Consult a qualified clinician before starting any peptide protocol.

Non-FDA-approved peptides are for research use only. Not for human or animal consumption.