Peptides for sexual function span from FDA-approved drugs with extensive clinical data to research compounds with anecdotal followings. This category includes hormones (GnRH analogs, oxytocin), melanocortin agents (PT-141), and emerging research peptides (kisspeptin). It also covers the most-searched peptide in this space: PT-141 (bremelanotide/Vyleesi), which is FDA-approved for female sexual desire dysfunction. This reference profiles 21 peptides and compounds studied for sexual function, libido, and reproductive health. Each is ranked by scientific evidence strength, with FDA status clearly marked.
Important: Star ratings measure evidence strength, not safety.
Every compound in this category, ranked by evidence strength.
| Peptide | FDA Status | Evidence | Key Note |
|---|---|---|---|
| Gonadorelin | FDA-Approved | ★★★★★ | FDA approved; strong evidence for fertility/HH |
| Triptorelin | FDA-Approved | ★★★★★ | FDA approved; strong RCT data |
| Leuprolide (Lupron) | FDA-Approved | ★★★★★ | FDA approved; extensive clinical data |
| Nafarelin (Synarel) | FDA-Approved | ★★★★★ | FDA approved |
| PGE1 / Alprostadil (Caverject, Muse) | FDA-Approved | ★★★★★ | FDA approved for ED; strong evidence |
| GnRH (as Gonadorelin) | FDA-Approved | ★★★★★ | Same as Gonadorelin entry above |
| Angiotensin II (Giapreza) | FDA-Approved | ★★★★★ | Approval is for vasopressor use only; sexual health claim has no meaningful e... |
| PT-141 (Bremelanotide / Vyleesi) | FDA-Approved | ★★★★☆ | FDA approved for HSDD; strong human data for that indication |
| Oxytocin (Pitocin) | FDA-Approved (prescription) | ★★★★☆ | FDA approved for obstetric use; sexual/bonding evidence good but more limited |
| Melanotan I (Afamelanotide / Scenesse) | FDA-Approved (EPP) | ★★★★☆ | Approved for EPP; other claims have separate evidence |
| Buserelin | Approved internationally / Not FDA-Approved in US | ★★★★☆ | Extensive international clinical data |
| VIP (Vasoactive Intestinal Peptide) | Not FDA-Approved in US (Invicorp abroad) | ★★★☆☆ | Invicorp approved in some countries; meaningful human ED data |
| Kisspeptin-10 | Research | ★★★☆☆ | Multiple human studies on reproductive hormone signaling |
| Kisspeptin-54 | Research | ★★★☆☆ | Several human studies |
| Relaxin | Research | ★★★☆☆ | Some human data for sexual health applications |
| Melanotan II (MT-2) | Research | ★★☆☆☆ | Some human pilot studies for ED/libido; not approved |
| Deslorelin | Veterinary / Not approved for human use | ★★☆☆☆ | Primarily veterinary data; limited human evidence |
| PACAP | Research | ★★☆☆☆ | Primarily preclinical for sexual function |
| LL-37 | Research | ★★☆☆☆ | Primarily preclinical |
| BPC-157 | Research | ★★☆☆☆ | Preclinical; stacking use anecdotal |
| Kisspeptin-13 | Research | ★★☆☆☆ | Less studied than K-10 and K-54 |
Synthetic GnRH, FDA-approved for fertility and hypogonadotropic hypogonadism. Strong clinical evidence for reproductive hormone function.
FDA-approved for erectile dysfunction (Caverject injection, MUSE urethral suppository). One of the best-evidenced treatments for ED.
FDA-approved for obstetric use (Pitocin). Evidence for sexual function and bonding is good but more limited than its obstetric use (★★★★☆ for sexual/bonding applications).
Multiple human studies on reproductive hormone signaling. Shows promise for testosterone modulation and fertility research, but not approved for sexual function use.
Every compound in this category, fully profiled with mechanisms, evidence ratings, FDA status, and research citations.
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