New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareAOD-9604 vs Oxytocin

AOD-9604 vs Oxytocin

Side-by-side comparison of key properties, dosing, and research.

Fat Loss & Metabolic
AOD-9604
Cognitive EnhancementSexual Health & Libido
Oxytocin
Summary
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.
Oxytocin is a 9-amino acid neuropeptide produced in the hypothalamus with diverse roles in social bonding, trust, stress reduction, and sexual function. Exogenous administration is used therapeutically to improve social cognition, reduce anxiety, and enhance intimacy.
Half-Life
30-45 minutes injectable; longer with nasal spray formulation
~3–5 minutes (IV); ~30–60 minutes (intranasal, CNS effects persist longer)
Admin Route
SubQ, Intranasal, Oral
Intranasal, SubQ, IV
Research
Typical Dose
300-600 mcg
20–40 IU
Frequency
Once daily
As needed (not daily long-term)
Key Benefits
  • 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
  • Enhances social bonding and trust
  • Reduces social anxiety and fear of rejection
  • Improves autism spectrum symptoms (social cognition)
  • Reduces cortisol and stress reactivity
  • Enhances sexual arousal and intimacy
  • Promotes maternal behavior and bonding
  • May improve depressive symptoms
  • Appetite suppression and metabolic effects
Side Effects
  • Localized injection site reactions
  • Headache (rare)
  • Hypoglycemia risk in combination with insulin (very rare)
  • Mild uterine cramping (avoid in pregnancy)
  • Nasal irritation (intranasal)
  • Headache
  • Potential emotional over-attachment or jealousy amplification
  • +2 more
Stacks With