The Library
Every peptide, graded on its evidence
52 compounds across 9 categories — mechanism, evidence, protocols, interactions, and monitoring for each.
5 compounds
PT-141 (Bremelanotide)
Bremelanotide · Vyleesi
An FDA-approved melanocortin agonist that acts on the brain to increase sexual desire.
Melanotan II
MT-2 · MT-II
A melanocortin agonist that tans skin and raises libido — with a notably troublesome side-effect profile.
Kisspeptin-10
KP-10 · Metastin fragment
An upstream reproductive-axis hormone studied in humans for libido and hormonal signalling.
Melanotan I
MT-1 · Afamelanotide (analogue)
A more selective melanocortin agonist for tanning, with fewer of Melanotan II's off-target effects.
Oxytocin
Oxytocin Acetate
The 'bonding' hormone, studied intranasally for social, mood, and intimacy effects.
Research & educational information only — not medical advice.
You must be 18 or older to use this site. The peptides described are presented as research chemicals intended for research purposes only. Most are not approved by the FDA for human use. Dosing ranges reflect what has appeared in the scientific literature or community protocols and are not prescriptions. Nothing here replaces evaluation by a licensed physician who knows your full medical history.
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