Somatropin (HGH) vs Kisspeptin-10
Side-by-side comparison of key properties, dosing, and research.
Growth Hormone PeptidesAnti-Aging & Longevity
Somatropin (HGH)Sexual Health & LibidoAnti-Aging & Longevity
Kisspeptin-10- 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.
- Kisspeptin-10 is the biologically active C-terminal decapeptide of kisspeptin, an endogenous regulator of the reproductive axis. It acts upstream of GnRH to potently stimulate LH and testosterone release, and plays a key role in sexual arousal and libido.
- Half-Life
- 2-3 hours (subcutaneous); 20-30 minutes (intravenous)
- ~4 minutes (rapidly degraded); longer-acting analogs like TAK-448 are in development
- Admin Route
- Subcutaneous, Intramuscular (less common)
- SubQ, IV
- Research
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- Typical Dose
- 0.15-0.3 mg/day (adults); titrated to IGF-1 levels
- 50–500 mcg
- Frequency
- Once daily
- Once daily to every other day
- 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
- Potently stimulates LH and testosterone
- Enhances sexual arousal and libido
- Activates HPG axis — upstream of GnRH
- May improve fertility in hypogonadotropic hypogonadism
- Increases brain activation in sexual attraction circuits
- May restore LH pulsatility in suppressed HPG axis
- Side Effects
- Fluid retention and edema (common, dose-dependent)
- Carpal tunnel syndrome
- Joint and muscle pain
- Insulin resistance and elevated blood glucose
- +3 more
- Injection site reactions
- Temporary nausea
- Flushing
- Elevated LH/testosterone (intended effect)
- +1 more
- Stacks With
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