AICAR vs Somatropin (HGH)
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & LongevityFat Loss & Metabolic
AICARGrowth Hormone PeptidesAnti-Aging & Longevity
Somatropin (HGH)- Summary
- AICAR is a cell-permeable AMP analog that activates AMPK (AMP-activated protein kinase) — the master metabolic switch that triggers fat burning, mitochondrial biogenesis, and adaptations normally only achieved through exercise. It has been called the 'exercise in a pill' compound.
- Somatropin is recombinant human growth hormone (rhGH), identical in structure to the 191-amino acid pituitary-derived growth hormone. It is FDA-approved for growth hormone deficiency, short stature, and wasting conditions. Off-label, it is widely explored for body composition, anti-aging, and performance enhancement, though significant risks accompany unsupervised use.
- Half-Life
- ~2–3 hours
- 2-3 hours (subcutaneous); 20-30 minutes (intravenous)
- Admin Route
- SubQ, IV
- Subcutaneous, Intramuscular (less common)
- Research
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- Typical Dose
- 25–50 mg
- 0.15-0.3 mg/day (adults); titrated to IGF-1 levels
- Frequency
- 3–5 times per week
- Once daily
- Key Benefits
- AMPK activation mimics aerobic exercise adaptations
- Increased fat oxidation and endurance
- Mitochondrial biogenesis (PGC-1alpha)
- Improved insulin sensitivity and glucose metabolism
- Anti-inflammatory effects
- Potential cardiac protection during ischemia
- Synergistic with actual exercise training
- Reduces hepatic glucose production
- Increases lean muscle mass and reduces body fat (particularly visceral)
- Restores growth hormone deficiency (FDA-approved)
- Improves bone mineral density
- Enhances exercise capacity and recovery
- Supports skin thickness and collagen synthesis
- Improves lipid profile in GHD patients
- Explored for anti-aging and cellular regeneration
- Side Effects
- Hypoglycemia risk
- Lactic acidosis at high doses (animal data)
- Injection site irritation
- Fluid retention and edema (common, dose-dependent)
- Carpal tunnel syndrome
- Joint and muscle pain
- Insulin resistance and elevated blood glucose
- +3 more
- Stacks With
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