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Peptide Comparison
Cetrorelix vs Relaxin
Both are Sexual Health peptides.
Cetrorelix
Cetrotide
Half-life: ~62 hours
1 providers listed
Quick Verdict
Cetrorelix
Risk
Half-life
~62 hours
Relaxin
Risk
Half-life
—
Side-by-Side Comparison
About Cetrorelix
Competitive GnRH receptor antagonist; immediately blocks pituitary GnRH receptors; rapidly suppresses LH/FSH without initial flare effect; used for controlled hormonal suppression
A GnRH antagonist that rapidly suppresses the HPG axis without the initial flare seen with GnRH agonists. Used in fertility protocols and studied for prostate conditions and hormonal management.
Research Areas
About Relaxin
Binds RXFP1 receptor, activating adenylyl cyclase and cAMP/PKA pathway. Upregulates matrix metalloproteinases (MMPs) to degrade excess collagen. Inhibits TGF-β fibrotic signaling. Promotes cervical softening and pelvic ligament compliance.
A peptide hormone produced by the corpus luteum during pregnancy and in small amounts in non-pregnant individuals. Remodels connective tissue, relaxes pelvic ligaments, and has potent anti-fibrotic effects. Studied for pelvic floor dysfunction, fertility support, and cardiac fibrosis.
Research Areas
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