Desmopressin vs GHRP-2
Head-to-head comparison of Desmopressin (1-Deamino-8-D-arginine vasopressin) and GHRP-2 (Growth Hormone Releasing Peptide-2) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Desmopressin | GHRP-2 |
|---|---|---|
| Category | Cognitive Enhancement | Performance |
| Full Name | 1-Deamino-8-D-arginine vasopressin | Growth Hormone Releasing Peptide-2 |
| Molecular Weight | 1069.22 Da | 817.97 Da |
| Half-Life | 1.5-3 hours | ~25 minutes |
| Amino Acids | 9 | 6 |
| Typical Dose | 10-40 mcg intranasal | 100-300 mcg |
| Route | Intranasal/Oral | SC / IV |
| Purity | ≥98% | — |
| Studies Count | 35 | 172 |
| Research Status | Clinical | Approved (Japan) |
Desmopressin Benefits
- ✓memory consolidation
- ✓reduced pressor burden
- ✓recall support
- ✓short-term learning
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
Desmopressin Dosing
intranasal research dosing|10-40 mcg or IU-equivalent studies|single-dose protocols
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
Desmopressin Side Effects
- ⚠hyponatremia
- ⚠headache
- ⚠nasal irritation
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
Desmopressin
The literature is mixed, but desmopressin has shown memory-related effects in selected populations and experimental paradigms. Its cognitive effects are usually discussed as a vasopressin-pathway probe rather than a primary nootropic.
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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