Sermorelin
GHRH (1-29) • Geref
Mechanism
Growth hormone-releasing hormone (GHRH) analog that stimulates natural growth hormone secretion from the pituitary gland. Promotes pulsatile GH release.
Half-Life
10-20 minutes
Administration
Technical Protocol
Sermorelin: Comprehensive Research Guide
Overview
Sermorelin (GHRH 1-29) is a synthetic analog of growth hormone-releasing hormone. It consists of the first 29 amino acids of the natural 44-amino acid GHRH molecule. Sermorelin stimulates the pituitary gland to produce and release growth hormone in a natural, pulsatile pattern.
Mechanism of Action
Growth Hormone Release
- Pituitary Stimulation: Binds to GHRH receptors on pituitary somatotrophs
- Natural Pattern: Promotes pulsatile GH release (mimics natural secretion)
- Feedback Loop: Works with natural feedback mechanisms
- Selective: More selective than direct GH administration
Advantages Over Direct GH
- Natural Pattern: Maintains natural GH pulsatility
- Feedback: Preserves negative feedback loops
- Safety: Lower risk of side effects
- Diagnostic: Can be used to test pituitary function
Research Applications
Growth Hormone Deficiency
- Diagnosis: Used to test GH secretion capacity
- Treatment: Approved for GH deficiency treatment
- Aging: Research into age-related GH decline
- Recovery: May support recovery and healing
Anti-Aging Research
- GH Restoration: Restores GH levels in aging individuals
- Body Composition: Improves lean mass and reduces fat
- Sleep: May improve sleep quality
- Energy: Increases energy levels
Dosage Protocols
Standard Protocol
- Dose: 100-300 mcg daily
- Typical: 200 mcg before bedtime
- Timing: Best administered before sleep (when GH naturally peaks)
- Administration: Subcutaneous injection
Cycle Recommendations
- Duration: 3-6 months
- Cycles: 3 months on, 1 month off
- Monitoring: Regular GH and IGF-1 testing recommended
Side Effects
- Minimal: Generally well-tolerated
- Injection Site: Mild irritation possible
- Headache: Occasional headaches
- Dizziness: Rare dizziness
- No Acromegaly: Lower risk than direct GH
Storage
- Temperature: 2-8°C (refrigerated)
- Light: Protect from light
- Reconstituted: Use within 2-3 weeks
This information is for research and educational purposes only. Sermorelin is a prescription medication.
Peer-Reviewed Citations
Sermorelin: a growth hormone-releasing hormone analog
Thorner MO, et al. • J Clin Endocrinol Metab (1993)
Access ResearchFrequently Asked Questions
What is Sermorelin?
A 29-amino acid GHRH analog approved for growth hormone deficiency diagnosis and treatment. Stimulates natural, pulsatile growth hormone release.
How does Sermorelin work?
Growth hormone-releasing hormone (GHRH) analog that stimulates natural growth hormone secretion from the pituitary gland. Promotes pulsatile GH release.
What is the typical dosage of Sermorelin in research?
The typical research dosage of Sermorelin is 200 mcg (range: 100-300 mcg). Common administration routes include Subcutaneous.
How should Sermorelin be stored?
Store at 2-8°C, protect from light
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