AOD9604

AOD9604 is a synthetic peptide fragment of human growth hormone (amino acids 177-191) that has been modified to keep the fat-burning effects of hGH while removing the effects on blood sugar and cell growth. This makes it a selective fat metabolism research tool. Supplied as lyophilized powder with ≥98% purity (HPLC-verified).

How It Works

Full human growth hormone has many effects throughout the body. AOD9604 isolates just one part — the fat-burning signal. It stimulates lipolysis (the breakdown of stored fat) and inhibits lipogenesis (the creation of new fat), without affecting insulin or IGF-1 levels. Think of it as a targeted key that only unlocks fat cells.

Research Data

• Fat loss: Preclinical studies show AOD9604 reduces body fat mass, particularly in obese animal models, without reducing food intake — meaning the weight loss comes from increased fat burning, not appetite suppression.
• Selective action: Unlike full hGH, AOD9604 does not raise blood sugar or insulin levels. This is a critical advantage — it targets only fat metabolism while leaving glucose regulation untouched.
• Abdominal fat: Research shows a particular effect on visceral and abdominal fat deposits, areas typically resistant to diet and exercise.
• No growth effects: AOD9604 does not stimulate IGF-1 production or cell proliferation, eliminating the growth-related side effects of full growth hormone.
• Cartilage repair: Additional research has investigated AOD9604 for joint and cartilage repair, with Phase 2 trials exploring its potential in osteoarthritis.

Research Applications

• Growth hormone fragment pharmacology
• Adipose tissue lipolysis and fat metabolism
• Selective fat reduction research
• Cartilage and joint tissue studies

Product Specifications

• Purity: ≥98% (HPLC)
• Form: Lyophilized powder
• Solubility: Reconstitute in sterile bacteriostatic water

Storage & Handling

• Store lyophilized peptide at -20°C, protected from light and moisture.
• After reconstitution, aliquot and store at -20°C. Avoid repeated freeze-thaw cycles.

Disclaimer: This product is intended exclusively for laboratory and research purposes. It is not a drug, dietary supplement, or food product. Not for human or veterinary use.

What the Internet Says

This is what online communities discuss about this compound. Not medical advice, not a recommendation — just what people are saying. For laboratory research use only.

Community Buzz

AOD9604 — known as “AOD” or “the fat-burning fragment” — is one of the most debated peptides in the community. Here’s the idea: growth hormone does many things (muscle growth, fat burning, IGF-1 elevation), but AOD9604 is the isolated fat-burning piece — it triggers lipolysis (fat breakdown) without affecting blood sugar or raising IGF-1. The appeal is obvious: get the fat-burning benefits of HGH without any of the side effects. But here’s the controversy: clinical development as an oral anti-obesity drug was terminated in 2007 because Phase 2b trials showed lack of efficacy vs placebo. The injectable form (what researchers use) may work differently, but there are no large human injectable trials. The community is split: “it works, the oral trial dose was wrong” vs “it’s a scam, save your money.” Despite the divide, AOD9604 maintains a loyal following — especially among people who can’t tolerate GLP-1 side effects or want fat loss without appetite changes.

Why People Are Interested

• Burns fat without touching blood sugar. Unlike HGH which can cause insulin resistance, AOD9604 targets only the fat-burning domain — no effect on glucose or IGF-1.
• No appetite changes. Unlike GLP-1 agonists that work by killing hunger, AOD9604 works on stored fat directly — you eat normally but burn more.
• Helps joints and cartilage. Animal studies show improved osteoarthritis recovery, especially when injected into the joint. Athletes use it for both fat loss and joint repair.
• Pairs well with fasted cardio. The classic community protocol: inject AOD9604, wait 30 minutes, then do fasted LISS cardio — supposedly to maximize lipolysis while fat cells are primed.

Popular Combinations

• AOD9604 + Semaglutide or Tirzepatide: The most popular current stack — GLP-1 handles appetite reduction, AOD9604 handles fat metabolism directly.
• AOD9604 + Tesamorelin: Dual fat-loss attack — AOD for lipolysis, Tesa for visceral fat targeting via GH pathway.
• AOD9604 + CJC/IPA: GH secretagogue + fat-burning fragment — CJC/IPA boosts natural GH, AOD9604 adds the fat-burning domain.
• AOD9604 + BPC-157: Fat loss + joint healing — popular among athletes wanting body composition improvement while recovering.

⚠️ Sourced from public forums (Reddit r/Peptides, r/Biohackers), fitness communities, and biohacking blogs. AOD9604’s clinical development was terminated in 2007 after Phase 2b oral trials failed. The injectable form used by the community has no large-scale human efficacy data. The “does it actually work?” debate is the single most discussed topic. Dosing is entirely community-derived with no clinical guidance. This information is for awareness only.