Sermorelin vs Exenatide
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone PeptidesAnti-Aging & Longevity
SermorelinGLP-1 / Weight Loss AgonistsCognitive Enhancement
Exenatide- 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.
- Exenatide is a GLP-1 receptor agonist derived from the Gila monster lizard peptide exendin-4, with 53% homology to human GLP-1 and natural resistance to DPP-4 degradation. Available as twice-daily (Byetta) or once-weekly (Bydureon) formulation, it is also being studied for Parkinson's disease neuroprotection.
- Half-Life
- 10–20 minutes
- ~2.4 hours (Byetta/twice-daily); Bydureon BCISE: weekly via microsphere release
- Admin Route
- SubQ
- SubQ
- Research
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- —
- Typical Dose
- 200–500 mcg
- 5 mcg, titrate to 10 mcg
- Frequency
- 5–7 days per week
- Twice 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
- Blood glucose control in type 2 diabetes
- Weight loss (average 2–3 kg in clinical trials)
- Once-weekly extended-release formulation available
- Reduces appetite and food intake
- Possible neuroprotective in Parkinson's disease (Phase II trials)
- Reduces systemic inflammation
- May protect pancreatic beta cells
- Cardiovascular neutral or potentially protective
- Side Effects
- Injection site irritation
- Flushing
- Headache
- Dizziness
- +2 more
- Nausea (most common, especially initially)
- Vomiting
- Diarrhea
- Headache
- +4 more
- Stacks With
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