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AOD-9604

A fat loss peptide that targets stubborn fat without affecting blood sugar or growth. AOD-9604 is a modified fragment of human growth hormone (HGH fragment 176-191) studied for fat metabolism and weight loss. It mimics GH's lipolytic effects without affecting blood sugar or growth. Previously in clinical trials for obesity; now popular in research settings.

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๐ŸงฌKey Characteristics
  • Length: 16 amino acids
    (C-terminal fragment of HGH.)
  • Origin: HGH 176-191
    (Modified growth hormone fragment.)
  • Mechanism: Lipolysis
    (Fat burning without growth effects.)
  • Primary Use: Fat loss
    (Targets stubborn fat areas.)
Peptide sequence
Tyr-Leu-Arg-Ile-Val-Gln-Cys-Arg-Ser-Val-Glu-Gly-Ser-Cys-Gly-Phe
This fragment contains the lipolytic (fat-burning) region of HGH without the growth-promoting portions. The added tyrosine (Tyr) at position 1 stabilizes the peptide.
Key takeaway: AOD-9604 isolates the fat-burning mechanism of growth hormone without affecting blood sugar or promoting growth. It specifically targets stubborn fat areas like the abdomen and hips without the side effects of full HGH therapy.

Overview

Core Benefits

Key Advantages
Targeted fat loss
Specifically targets stubborn fat areas like abdomen and hips.
No growth effects
Provides fat-burning benefits without HGH's growth-promoting effects.
Blood sugar neutral
Does not affect blood glucose levels like full HGH.
Body composition
May improve overall body shape and fat distribution.
Safe profile
Well-studied in clinical trials with favorable safety data.
HGH fragment
Contains the lipolytic region of growth hormone (176-191).

These are educational summaries of commonly discussed effects in wellness/regenerative contexts, not guarantees.

AOD-9604 Results Timeline

Progression
1
Week 1โ€“2
Physical Changes
Subtle fat mobilization begins
Performance & Recovery
Minimal direct performance effects
Other Benefits
No significant hunger or sleep changes
2
Week 3โ€“4
Physical Changes
Early reduction in stubborn fat areas
Performance & Recovery
Slight improvement in body composition
Other Benefits
No blood sugar or growth effects
3
Week 5โ€“6
Physical Changes
Visible fat loss, improved body shape
Performance & Recovery
Better physical appearance
Other Benefits
Localized fat reduction (abdomen, hips)
4
Week 7โ€“8
Physical Changes
Peak fat reduction for the cycle
Performance & Recovery
Improved body composition
Other Benefits
End of 8-week cycle; take 8 weeks off before repeating

Timeline is illustrative and non-guaranteed. Outcomes vary and are commonly discussed alongside training, nutrition, sleep, and cycling practices.

How It Works

Fat Loss Peptide โ€” HGH Fragment

Target โ†’ Lipolytic Signal โ†’ Fat Metabolism โ†’ Outcomes

๐ŸŽฏ
Target

Beta-3 Adrenergic Receptors on Adipose Tissue

AOD-9604 is a modified fragment of human growth hormone (amino acids 176-191). It retains GH's fat-mobilizing properties while lacking the growth-promoting and blood-sugar-affecting actions. It directly targets fat cells without affecting IGF-1 or insulin levels.

โšก
Cellular Signal

Lipolysis Activation Without IGF-1 Elevation

Stimulates lipolysis (fat breakdown) in adipose tissue through a mechanism similar to natural GH, but without triggering IGF-1 production or affecting glucose metabolism. This selective action is why AOD-9604 is considered a "fat-only" GH fragment.

๐Ÿ”„
Systemic Effect

Targeted Fat Mobilization โ†’ No Anabolic Effects

Fat mobilization and oxidation without the muscle-building, growth, or blood sugar effects of full GH. Does not cause insulin resistance or affect blood sugar โ€” making it suitable for those who want fat loss without the broader hormonal effects of GH peptides.

โœ…
What You Notice

Gradual Fat Loss โ†’ No Other Hormonal Effects

Gradual fat reduction over weeks to months, particularly effective when combined with fasted training. No changes in muscle mass, sleep, or other GH-related effects โ€” this is purely a fat-loss peptide. Effects are more subtle than full GH peptides.

What Makes This Peptide Different

AOD-9604 is unique as a fat-only GH fragment. Unlike full GH peptides (CJC-1295, Ipamorelin) that affect sleep, muscle, recovery AND fat, AOD-9604 isolates just the lipolytic effect. It doesn't raise IGF-1, doesn't affect blood sugar, and doesn't build muscle. This makes it ideal for those who specifically want fat loss without broader hormonal changes.

Dosing Protocol

Fat Loss

Educational reference only. Individual responses vary. Consult healthcare provider before use.

Vial Size
5 mg
Reconstitution
2 ml BAC water
Dose
300 mcg (12 units on 1ml syringe)
Timing
AM (fasted)
Frequency
5 days on, 2 days off
Duration
8 weeks on, 8 weeks off
Protocol Notes
Best taken fasted in morning for fat burning. Does not affect blood sugar or IGF-1.

Why This Dosing Protocol

Why fasted, in the morning? AOD-9604 stimulates lipolysis. Taking it fasted in the morning maximizes fat oxidation โ€” insulin is already low from overnight fasting, and morning activity further drives fat utilization.

Why it doesn't affect blood sugar: Unlike full GH (which causes insulin resistance), AOD-9604 lacks the amino acid sequences responsible for glucose effects. This is by design โ€” it's specifically the fat-loss fragment.

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Reconstitution calculator

Dilution math and unit conversions. Prefilled using a common vial size for this peptide.

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Educational Videos

How to Reconstitute Peptides

Handling

Educational overview on storage, labeling, and traceability considerations for lab environments. Consult primary literature and vendor documentation for specifics.

Powder Storage (Very Stable)
  • Freezer (-20ยฐC): 1+ year โœ“
  • Refrigerator (2-8ยฐC): 1-3 months โœ“
  • Room temperature: 2-3 weeks (emergency only)
Reconstituted Storage (Fragile)
  • MUST refrigerate at 2-8ยฐC
  • 4-week maximum shelf life
  • NEVER freeze after reconstitution
  • Use bacteriostatic water for multi-dose

Storage & Handling Guide

Learn proper storage temperatures, shelf life timelines, reconstitution best practices, and travel tips for lyophilized and reconstituted peptides.

Powder: Freezer
1+ year at -20ยฐC
Reconstituted: Fridge
4 weeks max at 2-8ยฐC
View Complete Storage Guide

FAQ

What is AOD-9604?

AOD-9604 is a modified fragment of human growth hormone (specifically the C-terminus, amino acids 176-191). It was developed to isolate GH's fat-burning properties without effects on blood sugar or growth. It mimics GH's lipolytic (fat-burning) mechanism.

Is AOD-9604 FDA approved?

AOD-9604 is not FDA-approved for weight loss. It went through clinical trials for obesity but didn't achieve approval. However, it remains popular in research settings and is available in some countries for specific uses.

How does AOD-9604 burn fat?

AOD-9604 stimulates lipolysis (fat breakdown) and inhibits lipogenesis (fat formation) by mimicking the fat-burning portion of growth hormone. It activates beta-3 adrenergic receptors in fat tissue, triggering the release of stored fatty acids for energy. Unlike full GH, it doesn't affect blood sugar or promote cell growth.

Does AOD-9604 affect blood sugar like growth hormone?

No, this is AOD-9604's key advantage. Full growth hormone can cause insulin resistance and elevated blood sugar, but AOD-9604 was specifically designed to isolate the fat-burning effects without the metabolic side effects. Studies show it doesn't affect glucose tolerance or insulin sensitivity.

What is the typical AOD-9604 dosage?

A common research dosage is 300 mcg per day, administered in the morning on an empty stomach to maximize fat oxidation (5 days on, 2 days off). Cycles typically run 8 weeks on, 8 weeks off. AOD-9604 does not affect blood sugar or IGF-1 levels, which is its key advantage over full growth hormone.

Can AOD-9604 be combined with other peptides?

Yes, AOD-9604 is often stacked with other fat loss or GH-related peptides. Common combinations include CJC-1295/Ipamorelin for GH benefits plus targeted fat loss, or with Tesamorelin for enhanced visceral fat reduction. Some combine it with Frag 176-191, though they have similar mechanisms.

What are the side effects of AOD-9604?

AOD-9604 is generally well-tolerated with minimal side effects. Some users report injection site reactions (redness, slight swelling), headache, or mild flu-like symptoms initially. Unlike full GH, it doesn't cause water retention, joint pain, or blood sugar issues. Long-term safety data is limited.

How long does it take to see results with AOD-9604?

Most users report noticeable fat loss effects within 4-8 weeks of consistent use. Results vary based on diet, exercise, and individual metabolism. It works best when combined with a caloric deficit and regular exercise. Don't expect dramatic overnight changes โ€” it enhances fat metabolism rather than causing rapid weight loss.

How long does reconstituted peptide last?

Once mixed with bacteriostatic water, peptides remain stable for up to 4 weeks when refrigerated at 2-8ยฐC (36-46ยฐF). Unopened powder can last 1+ year in the freezer. Get our complete Storage & Travel Guide.

Is this peptide legal to purchase?

Peptides sold "for research purposes only" are legal to purchase in the US, but are not FDA-approved for human use outside of specific medical applications. Always consult a healthcare provider before use.

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Scientific Sources

The following peer-reviewed studies and official resources provide additional scientific context for this peptide:

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