Tripeptide-29 vs AOD-9604
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticAnti-Aging & Longevity
Tripeptide-29Fat Loss & Metabolic
AOD-9604- Summary
- Tripeptide-29 is a pro-collagen cosmetic peptide composed of proline, hydroxyproline, and glycine — the core repeating unit of collagen. Applied topically, it signals dermal fibroblasts that collagen degradation has occurred, triggering compensatory new collagen synthesis.
- 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
- Not applicable (topical)
- 30-45 minutes injectable; longer with nasal spray formulation
- Admin Route
- Topical
- SubQ, Intranasal, Oral
- Research
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- Typical Dose
- 0.01-0.1% in formulation
- 300-600 mcg
- Frequency
- Once or twice daily
- Once daily
- Key Benefits
- Stimulates fibroblast collagen synthesis via damage-signal mechanism
- Reduces fine lines and improves skin smoothness
- Supports dermal matrix integrity
- Naturally bioidentical to collagen fragment sequences
- Well-tolerated in all skin types
- Synergistic with copper peptides and retinoids
- 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
- Excellent tolerability profile
- No documented significant adverse effects at cosmetic concentrations
- Rare sensitivity reactions in individuals with peptide allergies
- Localized injection site reactions
- Headache (rare)
- Hypoglycemia risk in combination with insulin (very rare)
- Stacks With
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