New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

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ToolsCompareKisspeptin-10 vs Glutathione

Kisspeptin-10 vs Glutathione

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

Sexual Health & LibidoAnti-Aging & Longevity
Kisspeptin-10
Anti-Aging & LongevityImmune Support
Glutathione
Summary
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.
Glutathione is the body's master endogenous antioxidant tripeptide, composed of glutamate, cysteine, and glycine. It neutralizes reactive oxygen species, supports detoxification in the liver, recycles other antioxidants (vitamins C and E), and plays a central role in immune function, DNA repair, and cellular redox balance.
Half-Life
~4 minutes (rapidly degraded); longer-acting analogs like TAK-448 are in development
Minutes to hours depending on route; IV half-life approximately 10-30 minutes
Admin Route
SubQ, IV
Oral (liposomal preferred), Sublingual, Intravenous, Nebulized/inhaled, Topical
Research
Typical Dose
50–500 mcg
250-1000 mg per day
Frequency
Once daily to every other day
Once or twice daily
Key Benefits
  • 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
  • Primary endogenous antioxidant and free radical scavenger
  • Supports hepatic detoxification of xenobiotics and heavy metals
  • Recycles vitamins C and E to maintain antioxidant network
  • Modulates immune function and T-cell activity
  • Skin brightening via inhibition of tyrosinase (IV/topical routes)
  • Neuroprotective in oxidative stress-related conditions
  • Mitochondrial protection and energy metabolism support
Side Effects
  • Injection site reactions
  • Temporary nausea
  • Flushing
  • Elevated LH/testosterone (intended effect)
  • +1 more
  • Oral bioavailability is limited (largely hydrolyzed in gut); liposomal or sublingual forms preferred
  • IV administration: rare allergic reactions, vein irritation
  • High-dose supplementation may cause zinc depletion over time
  • Inhaled glutathione may trigger bronchoconstriction in asthmatics
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