hGHRH(1-44) vs L-692,429
Head-to-head comparison of hGHRH(1-44) (Human growth hormone-releasing hormone (1-44) amide) and L-692,429 (L-692,429) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | hGHRH(1-44) | L-692,429 |
|---|---|---|
| Category | Growth Hormone | Growth Hormone |
| Full Name | Human growth hormone-releasing hormone (1-44) amide | L-692,429 |
| Molecular Weight | N/A | N/A |
| Half-Life | 5-15 minutes | unknown / study-dependent |
| Amino Acids | 44 | N/A |
| Typical Dose | 0.1-1 mcg/kg | 0.03-0.1 mg/kg |
| Route | Subcutaneous/IV | Oral |
| Purity | ≥98% | ≥98% |
| Studies Count | 120 | 30 |
| Research Status | Clinical Research | Pre-clinical |
hGHRH(1-44) Benefits
- ✓physiologic GH pulse support
- ✓IGF-1 pathway stimulation
- ✓pituitary receptor mapping
- ✓endocrine research tool
L-692,429 Benefits
- ✓potent GHSR agonism
- ✓oral bioactivity in models
- ✓validates ghrelin pathway
- ✓useful research probe
hGHRH(1-44) Dosing
0.1-1 mcg/kg SC or IV bolus for stimulation studies|single-dose endocrine challenge with timed GH sampling|pulsatile administration in clamp/infusion experiments
L-692,429 Dosing
0.03-0.1 mg/kg in early studies|single oral or short-course research dosing|serial GH sampling recommended
hGHRH(1-44) Side Effects
- ⚠flushing
- ⚠headache
- ⚠transient nausea
L-692,429 Side Effects
- ⚠increased appetite
- ⚠glucose intolerance
- ⚠transient prolactin changes
Research Overview
hGHRH(1-44)
Human GHRH(1-44) amide has been used extensively to characterize hypothalamic control of pituitary somatotrophs and the downstream GH/IGF-1 axis. It remains a standard comparator in studies of GHRH agonism, secretion dynamics, and receptor pharmacology.
L-692,429
L-692,429 was important in early GH secretagogue research because it showed that nonpeptide molecules could trigger robust GH release. It remains a classic tool compound for studying receptor-mediated GH pulsatility and appetite signaling.
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