Triptorelin vs Palmitoyl Tetrapeptide-7
Side-by-side comparison of key properties, dosing, and research.
Sexual Health & Libido
TriptorelinSkin & Cosmetic
Palmitoyl Tetrapeptide-7- Summary
- Triptorelin is a synthetic decapeptide analog of gonadotropin-releasing hormone (GnRH) with 100x the potency of native GnRH. An FDA-approved drug (Trelstar) for prostate cancer and precocious puberty, it is also used in post-cycle therapy (PCT) to rapidly restart the hypothalamic-pituitary-gonadal (HPG) axis after anabolic steroid suppression.
- 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.
- Half-Life
- Depot forms: weeks to months; aqueous: 6-8 hours
- Topical penetration-dependent; effects last hours to days
- Admin Route
- SubQ, IM
- Topical
- Research
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- Typical Dose
- 100 mcg
- 2-5 ppm concentration in formulation
- Frequency
- Single injection
- Twice daily
- Key Benefits
- Rapid HPG axis restart after steroid use
- Single-injection PCT protocol possible
- Massively elevates LH and FSH via flare effect
- Restores endogenous testosterone faster than traditional PCT
- FDA-approved for established medical uses
- 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
- Side Effects
- Initial testosterone flare (intended)
- Injection site reactions
- Hot flashes (with chronic use)
- Decreased libido (chronic dosing)
- Contact sensitization (rare)
- Well-tolerated at standard concentrations
- Stacks With
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