The peptide library
Every entry states its evidence level and approval status up front. Filter by what the research shows, not by what a product page claims.
Bremelanotide (PT-141)
The melanocortin peptide approved as Vyleesi for low sexual desire in premenopausal women — an on-demand drug, not a tanning product.
Cetrorelix
A GnRH antagonist used in fertility treatment to stop ovulation happening before egg collection.
Degarelix
A GnRH antagonist that suppresses testosterone immediately, without the initial hormone flare of agonists.
Goserelin
A GnRH agonist implant that suppresses ovarian or testicular hormone production for one or three months.
Kisspeptin
The neuropeptide that switches on the reproductive axis. Used in research to trigger ovulation and to probe why puberty and fertility fail.
Leuprolide
A GnRH agonist that shuts down sex-hormone production when given continuously; approved for prostate cancer, endometriosis, fibroids and early puberty.
Oxytocin
The labour hormone, used in every obstetric unit in the world. Its 'bonding' reputation rest on much weaker human evidence than its obstetric record.
Triptorelin
A long-acting GnRH agonist approved for prostate cancer, endometriosis and puberty that starts too early.