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ToolsCompareThymulin vs Kisspeptin-10

Thymulin vs Kisspeptin-10

Side-by-side comparison of key properties, dosing, and research.

Immune Support
Thymulin
Sexual Health & LibidoAnti-Aging & Longevity
Kisspeptin-10
Summary
Thymulin is a nonapeptide hormone produced exclusively by the thymic epithelium. It requires zinc for biological activity and plays a critical role in T-lymphocyte maturation, differentiation, and immune regulation. Thymulin levels decline dramatically with age, contributing to immunosenescence.
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
~30 minutes active half-life
~4 minutes (rapidly degraded); longer-acting analogs like TAK-448 are in development
Admin Route
SubQ
SubQ, IV
Research
Typical Dose
20-30 mcg
50–500 mcg
Frequency
10 days per month (Khavinson protocol)
Once daily to every other day
Key Benefits
  • Enhances T-cell maturation and differentiation
  • Boosts NK cell cytotoxic activity
  • Reduces inflammatory cytokine production (TNF-α, IL-1)
  • Anti-nociceptive (pain-reducing) properties
  • Restores age-related immune decline
  • Anti-inflammatory via serotonin pathway modulation
  • 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
  • Injection site reactions
  • Mild fatigue initially as immune system activates
  • Injection site reactions
  • Temporary nausea
  • Flushing
  • Elevated LH/testosterone (intended effect)
  • +1 more
Stacks With