Peptide library

What are you looking to improve.

Browse by what you want, not by molecule names. Each peptide on Panya is tagged with the effects it produces (recovery, sleep, cognition, muscle growth, longevity, more) so you can land at the right entry without already knowing the chemical name.

Each page covers mechanism, typical practice, regulatory status by region, risks, citations, and vendor names worth your own diligence. We cover what users search for, regardless of evidence strength or risk band; missing pages are bugs, not features.

For prescription peptides like Mounjaro, Wegovy, and Ozempic, Panya does match you to licensed clinicians. See /vendor or the quiz for that path.

Kisspeptin-10
peptidemedium risk
HPG axis stimulation, libido, fertility-curious
Sexual + fertilityHormonal support
aka KP-10 · Metastin

Kisspeptin-10 is a 10-amino-acid fragment of the parent kisspeptin peptide, encoded by the KISS1 gene. Acts upstream of GnRH to regulate the hypothalamic-pituitary-gonadal axis. Active human research in fertility and dep...

Melanotan II
peptidehigh risk
tanning, libido, appetite suppression
Skin + hairSexual + fertility
aka MT-II · MT2 · Melanotan 2

Melanotan II is a synthetic analog of alpha-melanocyte-stimulating hormone (alpha-MSH), engineered for resistance to enzymatic breakdown. Originally developed at the University of Arizona for skin photoprotection in fair...

PT-141 / Bremelanotide
peptidemedium risk
sexual desire and arousal (FDA-approved for HSDD)
Sexual + fertility
aka Bremelanotide · Vyleesi · PT141

PT-141 (bremelanotide) is a melanocortin receptor agonist FDA-approved as Vyleesi for hypoactive sexual desire disorder in premenopausal women. Acts centrally on the brain's arousal pathways, not peripherally on blood fl...

HCG (Human Chorionic Gonadotropin)
proteinmedium risk
fertility, cryptorchidism, TRT support, post-cycle therapy
Hormonal supportSexual + fertility
aka hCG · Pregnyl · Novarel · Choragon · Ovidrel (recombinant)

HCG is a 244-amino-acid glycoprotein hormone (alpha + beta subunits) structurally similar to luteinising hormone. FDA-approved for fertility and cryptorchidism since the 1970s; widely used off-label in TRT support and po...

Gonadorelin
peptidemedium risk
fertility diagnostics, pulsatile hypogonadism, off-label PCT
Hormonal supportSexual + fertility
aka GnRH · LHRH · Factrel (US, withdrawn) · Lutrelef (EU) · Gonadorelin acetate

Gonadorelin is the synthetic form of endogenous gonadotropin-releasing hormone, a decapeptide produced by the hypothalamus that drives pulsatile LH and FSH release from the pituitary. FDA-approved 1982 (US withdrawn 2002...

Peptide library + adjacent compounds · Panya · Panya