Secretin vs Ibutamoren
Head-to-head comparison of Secretin (Human Secretin) and Ibutamoren (Ibutamoren mesylate (MK-677)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Secretin | Ibutamoren |
|---|---|---|
| Category | Gastrointestinal | Growth Hormone |
| Full Name | Human Secretin | Ibutamoren mesylate (MK-677) |
| Molecular Weight | 3055.4 Da | N/A |
| Half-Life | 5-7 minutes | about 24 hours |
| Amino Acids | 27 | N/A |
| Typical Dose | 0.2 mcg/kg IV | 10-25 mg/day |
| Route | Intravenous | Oral |
| Purity | ≥98% | ≥98% |
| Studies Count | 800 | 180 |
| Research Status | Clinical | Clinical |
Secretin Benefits
- ✓stimulates-pancreatic-secretion
- ✓supports-bicarbonate-release
- ✓aids-duodenal-pH-control
- ✓helps-digestive-coordination
Ibutamoren Benefits
- ✓raises GH/IGF-1
- ✓increases appetite
- ✓supports lean mass retention
- ✓oral non-peptide secretagogue
Secretin Dosing
0.2 mcg/kg IV diagnostic dose|research infusion protocols|short bolus administration
Ibutamoren Dosing
10-25 mg orally once daily|take consistently at the same time each day|monitor fasting glucose and edema in longer studies
Secretin Side Effects
- ⚠flushing
- ⚠nausea
- ⚠abdominal-cramping
Ibutamoren Side Effects
- ⚠increased appetite
- ⚠water retention/edema
- ⚠somnolence or lethargy
Research Overview
Secretin
Secretin is a classic GI hormone with extensive physiology literature and established diagnostic use. It remains important for studying pancreatic secretory function, biliary responses, and duodenal feedback.
Ibutamoren
Clinical studies show oral ibutamoren reliably elevates GH and IGF-1 over 24 hours with once-daily dosing. Body composition and appetite effects vary by population, and development has been limited by metabolic side effects.
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