Palmitoyl Tetrapeptide-7 vs Kisspeptin-10
Side-by-side comparison of key properties, dosing, and research.
Skin & Cosmetic
Palmitoyl Tetrapeptide-7Sexual Health & LibidoAnti-Aging & Longevity
Kisspeptin-10- Summary
- Palmitoyl Tetrapeptide-7 (Rigin) is a cosmetic peptide consisting of palmitic acid linked to the tetrapeptide sequence GQPR (Gly-Gln-Pro-Arg). It was designed to mimic the biological activity of the IgG immunoglobulin C-terminus, which downregulates the production of interleukin-6 (IL-6), a key driver of skin aging and inflammation.
- 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
- Topical penetration-dependent; effects last hours to days
- ~4 minutes (rapidly degraded); longer-acting analogs like TAK-448 are in development
- Admin Route
- Topical
- SubQ, IV
- Research
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- Typical Dose
- 2-5 ppm concentration in formulation
- 50–500 mcg
- Frequency
- Twice daily
- Once daily to every other day
- Key Benefits
- Reduces IL-6 inflammatory cytokine in skin
- Prevents 'inflammaging' of the skin
- Inhibits MMP collagen-degrading enzymes
- Synergistic with Matrixyl for anti-aging
- Clinically tested for wrinkle and skin texture improvement
- Well-tolerated topically
- 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
- Contact sensitization (rare)
- Well-tolerated at standard concentrations
- Injection site reactions
- Temporary nausea
- Flushing
- Elevated LH/testosterone (intended effect)
- +1 more
- Stacks With
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