Modified GRF(1-29) vs L-692,429
Head-to-head comparison of Modified GRF(1-29) ([D-Ala2, Nle27]-human growth hormone-releasing hormone (1-29) amide) and L-692,429 (L-692,429) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Modified GRF(1-29) | L-692,429 |
|---|---|---|
| Category | Growth Hormone | Growth Hormone |
| Full Name | [D-Ala2, Nle27]-human growth hormone-releasing hormone (1-29) amide | L-692,429 |
| Molecular Weight | N/A | N/A |
| Half-Life | 10-30 minutes | unknown / study-dependent |
| Amino Acids | 29 | N/A |
| Typical Dose | 50-300 mcg | 0.03-0.1 mg/kg |
| Route | Subcutaneous | Oral |
| Purity | ≥98% | ≥98% |
| Studies Count | 150 | 30 |
| Research Status | Investigational | Pre-clinical |
Modified GRF(1-29) Benefits
- ✓enhanced GH release
- ✓greater peptide stability
- ✓IGF-1 support research
- ✓longer receptor engagement
L-692,429 Benefits
- ✓potent GHSR agonism
- ✓oral bioactivity in models
- ✓validates ghrelin pathway
- ✓useful research probe
Modified GRF(1-29) Dosing
50-100 mcg SC for acute GH-response studies|100-300 mcg SC in monitored research protocols|repeat dosing in short investigative cycles with GH/IGF-1 tracking
L-692,429 Dosing
0.03-0.1 mg/kg in early studies|single oral or short-course research dosing|serial GH sampling recommended
Modified GRF(1-29) Side Effects
- ⚠headache
- ⚠water retention
- ⚠injection-site irritation
L-692,429 Side Effects
- ⚠increased appetite
- ⚠glucose intolerance
- ⚠transient prolactin changes
Research Overview
Modified GRF(1-29)
Modified GRF(1-29) has been studied as a practical GHRH analog for boosting GH release while improving peptide stability versus the native fragment. It is a standard reference compound in experimental work on growth hormone pulsatility and analog design.
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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