hGHRH(1-37)OH vs L-692,429

Head-to-head comparison of hGHRH(1-37)OH (Human growth hormone-releasing factor (1-37) hydroxyl) and L-692,429 (L-692,429) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyhGHRH(1-37)OHL-692,429
CategoryGrowth HormoneGrowth Hormone
Full NameHuman growth hormone-releasing factor (1-37) hydroxylL-692,429
Molecular WeightN/AN/A
Half-Life5-20 minutesunknown / study-dependent
Amino Acids37N/A
Typical Dose1-2 mcg/kg0.03-0.1 mg/kg
RouteSubcutaneous/IVOral
Purity≥98%≥98%
Studies Count6030
Research StatusClinical ResearchPre-clinical

hGHRH(1-37)OH Benefits

  • GH release studies
  • minimal-sequence mapping
  • receptor pharmacology
  • peptide stability research

L-692,429 Benefits

  • potent GHSR agonism
  • oral bioactivity in models
  • validates ghrelin pathway
  • useful research probe

hGHRH(1-37)OH Dosing

1-2 mcg/kg SC or IV bolus|acute stimulation with serial GH assays|short-course research administration with biomarker monitoring

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(1-37)OH Side Effects

  • flushing
  • headache
  • transient fatigue

L-692,429 Side Effects

  • increased appetite
  • glucose intolerance
  • transient prolactin changes

Research Overview

hGHRH(1-37)OH

Human GHRF(1-37)OH has appeared in studies examining how loss of C-terminal residues affects biological activity at the GHRH receptor. It is often used alongside other fragments to define structure-activity relationships within the GHRH family.

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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Common Stacking Partners

hGHRH(1-37)OH stacks with:

L-arginineL-lysineglycine

L-692,429 stacks with:

Receptor assaysEndocrine studies
ghrhfragmentstructure-activityendocrinologytool-compoundgh-secretagogueghrelin-pathway