Sermorelin vs Cortagen
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone PeptidesAnti-Aging & Longevity
SermorelinAnti-Aging & LongevityRecovery & Repair
Cortagen- Summary
- Sermorelin is a bioidentical synthetic peptide comprising the first 29 amino acids of naturally occurring GHRH. It is FDA-approved for diagnostic use and widely prescribed off-label for anti-aging, stimulating growth hormone production in a natural pulsatile pattern that mimics the body's own rhythm.
- Cortagen is a synthetic tetrapeptide (Ala-Glu-Asp-Pro) developed at the St. Petersburg Institute of Bioregulation as a cardioprotective and vascular bioregulator. It stimulates repair of cardiac and vascular tissue, with demonstrated benefits for coronary artery disease, atherosclerosis, and cardiac aging.
- Half-Life
- 10–20 minutes
- Short peptide half-life; gene regulatory effects persist beyond peptide clearance
- Admin Route
- SubQ
- SubQ, IM, Oral
- Research
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- Typical Dose
- 200–500 mcg
- 10 mg SC or IM daily
- Frequency
- 5–7 days per week
- Once daily
- Key Benefits
- Increases energy and vitality
- Improves body composition (more muscle, less fat)
- Enhances skin thickness and elasticity
- Strengthens immune system
- Improves sleep quality and REM sleep
- Supports bone density
- Enhances mental clarity and focus
- Safer than exogenous HGH — respects natural feedback loops
- FDA-approved for GH diagnostic use
- Cardioprotective — protects cardiac tissue from ischemic damage
- Promotes cardiac regeneration and repair
- Improves vascular endothelium function
- Reduces atherosclerosis progression
- Anti-aging effect on heart muscle cells
- Improves cardiac output and exercise capacity
- Reduces oxidative stress in cardiovascular tissue
- May reduce arrhythmia frequency
- Side Effects
- Injection site irritation
- Flushing
- Headache
- Dizziness
- +2 more
- Excellent safety profile
- Mild injection site reactions
- Rare: transient hypotension
- Rare: mild arrhythmia at initiation in cardiac patients
- Stacks With
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