ThePeptide.expert
Database

Peptide profiles.

Filter by category, search by name. Each profile is graded on a five-tier evidence scale.

4 profiles

PT-141

Bremelanotide / Vyleesi

FDA approved
injectablenasal
Evidence

FDA-approved peptide for sexual dysfunction. Works through central nervous system desire circuits — not vascular mechanisms like PDE5 inhibitors. Effective for both men and women.

Melanotan II

MT-II / α-MSH analogue

RUO only
injectable
Evidence

Non-selective α-MSH analogue studied for tanning sexual function and appetite suppression. Parent compound of FDA-approved PT-141. Non-selectivity creates more side effects.

Gonadorelin

GnRH / Luteinizing Hormone-Releasing Hormone / Lutrepulse

FDA approved
injectable
Evidence

FDA-approved GnRH analogue. Maintains testicular function and fertility during testosterone replacement therapy. Standard component of TRT protocols to prevent testicular atrophy.

Kisspeptin-10

KP-10 / Metastin fragment

RUO only
injectable
Evidence

Hypothalamic peptide that drives GnRH pulsatility — the most upstream signal in the entire reproductive hormone cascade. Studied for libido fertility and hypogonadism research.