Sermorelin vs AOD-9604
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone PeptidesAnti-Aging & Longevity
SermorelinFat Loss & Metabolic
AOD-9604- Summary
- Sermorelin is a bioidentical synthetic peptide comprising the first 29 amino acids of naturally occurring GHRH. It is FDA-approved for diagnostic use and widely prescribed off-label for anti-aging, stimulating growth hormone production in a natural pulsatile pattern that mimics the body's own rhythm.
- AOD-9604 is a modified fragment of human growth hormone (residues 177-191) with an additional tyrosine residue that significantly enhances bioavailability. Originally developed as an anti-obesity drug by Metabolic Pharmaceuticals, it stimulates lipolysis and inhibits lipogenesis without the diabetogenic effects of full GH.
- Half-Life
- 10–20 minutes
- 30-45 minutes injectable; longer with nasal spray formulation
- Admin Route
- SubQ
- SubQ, Intranasal, Oral
- Research
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- Typical Dose
- 200–500 mcg
- 300-600 mcg
- Frequency
- 5–7 days per week
- Once daily
- Key Benefits
- Increases energy and vitality
- Improves body composition (more muscle, less fat)
- Enhances skin thickness and elasticity
- Strengthens immune system
- Improves sleep quality and REM sleep
- Supports bone density
- Enhances mental clarity and focus
- Safer than exogenous HGH — respects natural feedback loops
- FDA-approved for GH diagnostic use
- Selective fat loss without anabolic side effects
- No effect on blood glucose or insulin resistance
- Improved bioavailability over Fragment 176-191
- GRAS (Generally Recognized As Safe) status in Australia
- Potential cartilage repair and anti-inflammatory properties
- Does not suppress natural GH production
- Side Effects
- Injection site irritation
- Flushing
- Headache
- Dizziness
- +2 more
- Localized injection site reactions
- Headache (rare)
- Hypoglycemia risk in combination with insulin (very rare)
- Stacks With
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