hGHRH(1-32)NH2 vs Capromorelin

Head-to-head comparison of hGHRH(1-32)NH2 (Human growth hormone-releasing factor (1-32) amide) and Capromorelin (Capromorelin hydrochloride) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyhGHRH(1-32)NH2Capromorelin
CategoryGrowth HormoneGrowth Hormone
Full NameHuman growth hormone-releasing factor (1-32) amideCapromorelin hydrochloride
Molecular WeightN/AN/A
Half-Life5-15 minutesabout 2-3 hours
Amino Acids32N/A
Typical Dose0.1-1 mcg/kg0.25-2 mg/kg/day
RouteSubcutaneous/IVOral
Purity≥98%≥98%
Studies Count5055
Research StatusClinical ResearchClinical

hGHRH(1-32)NH2 Benefits

  • GH pulse induction
  • core-sequence testing
  • receptor signaling studies
  • protease-resistance comparisons

Capromorelin Benefits

  • GH secretagogue activity
  • appetite stimulation
  • oral administration
  • translational animal model utility

hGHRH(1-32)NH2 Dosing

0.1-1 mcg/kg SC or IV bolus|acute GH-response testing with timed blood draws|pulsatile dosing in receptor studies

Capromorelin Dosing

0.25-2 mg/kg orally in studies|once-daily or protocol-specific dosing|monitor appetite and body weight

hGHRH(1-32)NH2 Side Effects

  • headache
  • flushing
  • injection-site irritation

Capromorelin Side Effects

  • increased appetite
  • vomiting or nausea
  • lethargy

Research Overview

hGHRH(1-32)NH2

Human GHRF(1-32)NH2 is used in basic and translational studies to evaluate how the active N-terminal region of GHRH drives pituitary hormone release. It helps define the lower bound of sequence length needed for meaningful biological activity.

Capromorelin

Research consistently shows capromorelin activates the ghrelin receptor pathway and increases food intake. Human development has been less prominent than veterinary use, but the compound remains a relevant GH secretagogue prototype.

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Common Stacking Partners

hGHRH(1-32)NH2 stacks with:

L-arginineL-ornithineglycine

Capromorelin stacks with:

Nutritional supportResistance training
ghrhactive-corepituitarypeptide-fragmentghrelin-receptor-agonistappetite-stimulantgh-secretagogue