Somatropin (HGH) vs KPV
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone PeptidesAnti-Aging & Longevity
Somatropin (HGH)Immune SupportRecovery & Repair
KPV- Summary
- 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.
- KPV is a naturally occurring anti-inflammatory tripeptide derived from the C-terminal of alpha-MSH. It powerfully suppresses intestinal and systemic inflammation via melanocortin receptors, making it valuable for IBD, gut healing, and wound repair.
- Half-Life
- 2-3 hours (subcutaneous); 20-30 minutes (intravenous)
- Short half-life (~15–30 minutes), but effects persist longer due to receptor-level anti-inflammatory cascades
- Admin Route
- Subcutaneous, Intramuscular (less common)
- Oral, SubQ, Topical
- Research
- —
- —
- Typical Dose
- 0.15-0.3 mg/day (adults); titrated to IGF-1 levels
- 500 mcg – 1 mg
- Frequency
- Once daily
- Once to twice daily
- Key Benefits
- 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
- Reduces intestinal inflammation (IBD, Crohn's, colitis)
- Promotes gut mucosal healing and barrier integrity
- Accelerates wound healing topically
- Suppresses systemic inflammatory cytokines
- Antimicrobial properties against pathogens
- Reduces neuroinflammation when administered systemically
- May improve symptoms of inflammatory skin conditions
- Side Effects
- Fluid retention and edema (common, dose-dependent)
- Carpal tunnel syndrome
- Joint and muscle pain
- Insulin resistance and elevated blood glucose
- +3 more
- Generally very well tolerated
- Mild injection site reactions (SC)
- Rare: transient flushing
- Stacks With
- —
- —