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Growth Hormone Secretagogues
Weight & Metabolic
Research Chemical

Ghrelin Acetate

Also known as: Ghrelin Acetate, Ghrelin

Ghrelin Acetate is the acetate salt of ghrelin, the endogenous gut-derived hormone that drives hunger and stimulates growth hormone release. It is studied for appetite and GH-axis research.

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Mechanism of Action

Ghrelin is a 28-amino-acid peptide that, in its acylated form, binds the growth hormone secretagogue receptor (GHS-R1a) in the hypothalamus and pituitary. Receptor activation stimulates phospholipase C signaling, raising intracellular calcium and driving robust pulsatile growth hormone secretion. Centrally, ghrelin activates NPY/AgRP neurons in the arcuate nucleus to increase appetite and promote energy storage. It also influences gastric motility and reward pathways, making it a central regulator of energy homeostasis.

Half-life
Approximately 10-30 minutes for acylated ghrelin
Administration Routes
subcutaneous
Research Status
Research Chemical

Reported Benefits

  • Potently stimulates growth hormone release
  • Increases appetite in research models of cachexia and low intake
  • Promotes gastric motility
  • Used as a reference ligand for GHS-R pharmacology
  • Investigated for metabolic and energy-balance research

Potential Side Effects

  • Marked increase in hunger
  • Transient changes in cortisol and prolactin
  • Possible water retention
  • Short-lived effects requiring frequent dosing

Common Dosing

Research studies have used microgram-per-kilogram intravenous or subcutaneous doses to probe GH and appetite responses. Provided as research-use information only and not personal medical advice.

The dosing information above is aggregated from research literature and anecdotal community reports for educational purposes only. It is not a recommendation, prescription, or medical advice. Peptides are sold as research chemicals only and are not intended for human use.

Contraindications

  • Not for human therapeutic use
  • Avoid in active malignancy due to GH/IGF-1 stimulation
  • Caution where increased appetite is undesirable
  • Ghrelin is a growth-hormone-releasing acylated peptide from stomach

    1999

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  • Ghrelin enhances appetite and increases food intake in humans

    2001

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  • Ghrelin strongly stimulates growth hormone release in humans

    2000

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  • Treatment of cachexia with ghrelin in patients with COPD

    2005

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Yes, ghrelin is the principal hunger-signaling hormone and strongly increases appetite by activating arcuate-nucleus neurons.

Synthetic GHRPs were designed to mimic ghrelin's action at the GHS-R1a receptor, which is why ghrelin is the natural reference ligand.

PeptideChat is for educational and research purposes only. Nothing on this site constitutes medical advice. Peptides are sold as research chemicals only and are not intended for human use. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. PeptideChat is an independent educational resource — not a pharmacy, compounding, or 503A/503B outsourcing facility — and does not sell products or provide medical advice.