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Kisspeptin-10 and PT-141 Together: What Is Known

Kisspeptin-10 and PT-141 taken together: what each one is, how each is regulated, and what is known about combining them.

Medically reviewed by Juan Pablo Frías, MD · · DisclosureUpdated
GnRH stimulatorNot FDA approved · research chemicalKisspeptin-10GnRH-stimulating peptide, not FDA-approved; in healthy men, subcutaneous kisspeptin-10 infusions dose-dependently raised LH, FSH and testosterone versus vehicle.[6]Sexual & hormonal healthMelanocortin agonistFDA approved for HSDD (Vyleesi)PT-141Melanocortin agonist FDA-approved as Vyleesi for premenopausal women with low sexual desire; the integrated trials showed a statistically significant desire increase of 0.35.[10]Sexual & hormonal health
Interaction notes

Timing, interactions and safety

Evidence for the combination

No studies tested these together (PubMed search: 0 results, 2 Oct 2026).

We have no sourced data on taking these two together. Ask the prescriber who manages both.
Each component

Side by side

Showing 11 of 14 fields where the two differ. Category, PCAC vote, Jul 2026, Evidence strength are the same or both unknown.

FieldKisspeptin-10PT-141
ClassGnRH stimulatorMelanocortin agonist
Also calledkissVyleesi, PT141
FDA statusNot FDA approved · research chemicalFDA approved for HSDD (Vyleesi)
WADAProhibited by WADA (S2.2.1)Kisspeptin and its agonist analogues are named in S2.2.1 (testosterone-stimulating peptides in males).Not on the WADA Prohibited ListPT-141 (bremelanotide) is not named on the list and is FDA-approved (Vyleesi), so S0 does not apply. It does not fit the named S2 subclasses.
Anti-doping detection
  • Kisspeptin-10 is cleared very fast (30 minutes in rats), so labs target metabolites.PMID 38978171
  • A 2026 method detects kisspeptins in serum and urine; samples from people who actually took them were not yet tested.PMID 42057309
None reportedanti-doping literature, as of 2 Oct 2026
Half-lifemean elimination half-life 1.3-2.2 hourssubcutaneous (analog MVT-602) · Fertility and sterility 2024, PMID 37925096approximately 2.7 hours (range 1.9-4.0 h)subcutaneous · FDA label (Vyleesi)
Human studies we summarised13 human (10 randomized or controlled) of 16 summarised12 human (12 randomized or controlled) of 12 summarised
Typical study doses
Vial sizes sold5 mg, 10 mg10 mg
US searches per month22,200 · +371% searches67,600 · +123% searches
Named in FDA warning letters, 2026Not in the letters we trackYes (24 Aug 2026)
Related tools

Kisspeptin-10 vs PT-141

Choosing between the two rather than combining them? The comparison lines them up field by field.

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What people search

  • kisspeptin and pt 14140/mo
  • pt 141 and kisspeptin20/mo
  • pt 141 kisspeptin10/mo
  • pt 141 and kisspeptin together10/mo
  • kisspeptin pt 14110/mo
  • kisspeptin and pt 141 together10/mo

US monthly searches, Google Keyword Planner, Oct 2026. Shown so you can see which questions this page answers.

Sources

  1. 1FDA warning letters to five research-peptide sellersFDA warning letter (NuScience Peptides; 1 of 5) · 2026fda.govAccessed 2 Oct 2026
  2. 2World Anti-Doping Code International Standard Prohibited List 2026World Anti-Doping Agency · 2026wada-ama.orgAccessed 2 Oct 2026
  3. 3[Not Available].Biomedical chromatography : BMC · 2024PMID 38978171Accessed 2 Oct 2026
  4. 4Analysis and Characterization of Kisspeptin and Its Analogues in Serum and Urine Samples by Liquid Chromatography-High-Resolution Mass Spectrometry for Doping Control Purposes.Drug testing and analysis · 2026PMID 42057309Accessed 2 Oct 2026
  5. 5Endocrine profile of the kisspeptin receptor agonist MVT-602 in healthy premenopausal women with and without ovarian stimulation: results from 2 randomized, placebo-controlled clinical tricals.Fertility and sterility · 2024PMID 37925096Accessed 2 Oct 2026
  6. 6Chronic subcutaneous kisspeptin-10 stimulates gonadotropin secretion for 12 days in healthy men.European journal of endocrinology · 2026PMID 42549827Accessed 2 Oct 2026
  7. 7Effects of Kisspeptin Administration in Women With Hypoactive Sexual Desire Disorder: A Randomized Clinical Trial.JAMA network open · 2022PMID 36287566Accessed 2 Oct 2026
  8. 8These highlights do not include all the information needed to use VYLEESI ® safely and effectively. See full prescribing information for VYLEESI VYLEESI (bremelanotide injection), for subcutaneous use Initial U.S. Approval: 2019FDA label (Vyleesi), DailyMed · current labeldailymed.nlm.nih.govAccessed 2 Oct 2026
  9. 9Prespecified and Integrated Subgroup Analyses from the RECONNECT Phase 3 Studies of Bremelanotide.Journal of women's health (2002) · 2022PMID 35230162Accessed 2 Oct 2026
  10. 10Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials.Obstetrics and gynecology · 2019PMID 31599840Accessed 2 Oct 2026
  11. 11Responder Analyses from a Phase 2b Dose-Ranging Study of Bremelanotide.The journal of sexual medicine · 2019PMID 31277966Accessed 2 Oct 2026
  12. 12PubMed search: ("kisspeptin-10"[tiab] OR "kisspeptin 10"[tiab]) AND (bremelanotide[tiab] OR "PT-141"[tiab] OR PT141[tiab] OR Vyleesi[tiab])PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026

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