Oxytocin vs GHRP-2
Head-to-head comparison of Oxytocin (Neurohypophysial Hormone Peptide) and GHRP-2 (Growth Hormone Releasing Peptide-2) — benefits, dosing, side effects, research data, and where to buy.
| Property | Oxytocin | GHRP-2 |
|---|---|---|
| Category | Performance | Performance |
| Full Name | Neurohypophysial Hormone Peptide | Growth Hormone Releasing Peptide-2 |
| Molecular Weight | 1,007.19 Da | 817.97 Da |
| Half-Life | ~3-5 minutes (plasma) | ~25 minutes |
| Amino Acids | 9 | 6 |
| Typical Dose | 20-40 IU intranasal | 100-300 mcg |
| Route | Intranasal / IV / IM | SC / IV |
| Purity | — | — |
| Studies Count | 1850 | 172 |
| Research Status | FDA Approved (Pitocin) | Approved (Japan) |
Oxytocin Benefits
- ✓Enhances social bonding and trust
- ✓Reduces social anxiety
- ✓Emotional regulation
- ✓Potential autism spectrum benefits
- ✓Stress and anxiety reduction
GHRP-2 Benefits
- ✓Potent GH release (stronger than GHRP-6)
- ✓Less appetite stimulation than GHRP-6
- ✓Improved body composition
- ✓Enhanced deep sleep quality
- ✓Cytoprotective properties
Oxytocin Dosing
Intranasal: 20-40 IU per dose, 1-2 times daily|Social Anxiety: 24 IU intranasal 45 min before social situations|Research: 8-40 IU per administration|Clinical: Per physician protocol
GHRP-2 Dosing
Standard: 100-300 mcg SC 2-3 times daily|Pre-bed: 100-200 mcg for GH pulse during sleep|Combined: 100 mcg with CJC-1295 for synergy|Cycle: 8-16 weeks, 4 weeks off
Oxytocin Side Effects
- ⚠Common (Intranasal): Nasal irritation, headache, drowsiness
- ⚠Moderate: Uterine contractions (caution in pregnancy)
- ⚠Rare: Water retention at high doses
- ⚠Contraindications: Pregnancy (non-medical), cardiovascular disease
GHRP-2 Side Effects
- ⚠Common: Mild appetite increase, water retention, tingling
- ⚠Moderate: Cortisol elevation at higher doses
- ⚠Rare: Prolactin increase, transient dizziness
- ⚠Better tolerated than GHRP-6 overall
Research Overview
Oxytocin
Oxytocin has extensive research and is one of the most studied hormonal peptides. FDA-approved for obstetric use. Intranasal formulations being studied for autism spectrum disorder, social anxiety, PTSD, and depression. Complex dose-response relationships being elucidated.
GHRP-2
GHRP-2 has strong clinical evidence. Approved in Japan for diagnostic use. Multiple human studies confirm reliable GH stimulation with a favorable side effect profile compared to GHRP-6.
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