GHRP-2 vs Humanin
Side-by-side comparison of key properties, dosing, and research.
- Summary
- GHRP-2 is a potent synthetic hexapeptide that stimulates growth hormone release by activating ghrelin receptors in the pituitary and hypothalamus. It produces one of the strongest GH pulses among GHRPs, though unlike Ipamorelin it does cause modest increases in cortisol and prolactin.
- Humanin is a mitochondria-derived peptide (MDP) encoded in the 16S rRNA region of the mitochondrial genome. It protects neurons and other cells from apoptosis, improves insulin sensitivity, and declines significantly with age. HNG (S14G-Humanin) is a synthetic analog with 1000x greater potency.
- Half-Life
- 15–60 minutes
- ~4–8 hours (HNG)
- Admin Route
- SubQ, Intranasal
- SubQ
- Research
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- Typical Dose
- 100–300 mcg
- 2–8 mg
- Frequency
- 2–3 times daily
- 3–5 times per week
- Key Benefits
- Strong GH pulse stimulation
- Increased IGF-1 levels
- Enhanced muscle growth and recovery
- Improved fat metabolism
- Better sleep quality
- Increased bone density
- Enhanced appetite (less pronounced than GHRP-6)
- Anti-aging effects via GH axis optimization
- Neuroprotection against amyloid-beta toxicity (Alzheimer's relevance)
- Inhibits cellular apoptosis
- Improves insulin sensitivity
- Reduces cardiovascular risk markers
- Anti-inflammatory effects
- Correlates with longevity in centenarian studies
- Protects against ischemic injury
- Potential cancer cell apoptosis sensitization
- Side Effects
- Increased appetite
- Water retention
- Elevated cortisol (modest)
- Elevated prolactin (modest)
- +2 more
- Injection site irritation
- Limited human safety data available
- Stacks With
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