For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Melanocortin

PT-141

Also known as: Bremelanotide

PT-141 (Bremelanotide) is a cyclic heptapeptide melanocortin receptor agonist derived from Melanotan II. It is FDA-approved as Vyleesi (2019) for hypoactive sexual desire disorder in premenopausal women only.

Where to buy · live market data

Who's worth your money for PT-141

Every current seller, ranked by independent evidence — Merit Score, latest COA purity, and live $/mg (size-normalized). Prices refresh daily. Rankings are never paid.

Top Merit pick

Highest Merit Score (99) of 40 scored sellers

$2.87/mg

$28.69 · 10mg · 99.0% purity

3 COAs
Buy Code MERIT · 10% off

Best value

Lowest $/mg among scored sellers

$1.45/mg

$145 · 100mg · 99.8% purity

Most tested

32 independent COAs on file

$3.50/mg

$34.99 · 10mg · 99.7% purity

Average price

$4.55/mg

Sellers

75

45-day trend

-28%

60 of 75 sellers have a current price· 5 stale hidden· 15 unverified hidden

Prices observed from public storefronts (last 24h), normalized to $/mg. "Evidence" is Merit's 0–100 Merit Score, derived only from observable verification evidence (methodology on /about); "Purity" is the latest independent COA. Some buy links are affiliate links — Merit may earn a commission at no extra cost to you, and where a vendor offers one, the code shown gets you a discount at their checkout. Affiliate status never affects price data, ranking, or the Merit Score (full policy on /disclosure). Research use only.

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Compound reference

About PT-141

CAS

189691-06-3

Molecular formula

C50H68N14O10

Typical dose range

0.5–2 mg subcutaneous, administered ~45 minutes before activity; FDA-approved dose is 1.75 mg SC (max one dose per 24h, ≤8 doses/month)

Half-life

~2.7 hours (range 1.9–4.0 hours)

Independent evidence

COAs for PT-141

177 third-party tests across 43 vendors. Each card links to the full report.

All 177 COAs for PT-141 →
Measured purity 98.9%–100.0% across 113 COAs
Measured purity over time
Aggregated · 3rd-party listing
99.78 %
Sep 2026
Freedom Diagnostics Moderate

For

PT-141

by Sunrise Bioresearch· batch PTSEP26-01

✓ Vendor-published
99.78 %
Sep 2026
Freedom Diagnostics Moderate

For

PT-141

by Sunrise Bioresearch· batch PTSEP26-01

COA on file
Aggregated · 3rd-party listing
99.93 %
Sep 2026
ILS Labs Strong

For

PT-141

by NG Peptide· batch pt10-04

Aggregated · 3rd-party listing
99.89 %
Sep 2026
Freedom Diagnostics Moderate

For

PT-141

by Moglabs· batch PT-X-003

Aggregated · 3rd-party listing
99.98 %
Sep 2026
Janoshik Analytical Limited

For

PT-141

by CertaPeptides· batch CP-2608-PT110

Aggregated · 3rd-party listing
99.96 %
Sep 2026
Freedom Diagnostics Moderate

For

PT-141

by Peptide Plugs· batch 282510L-DK

Aggregated · 3rd-party listing
99.88 %
Sep 2026
Janoshik Analytical Limited

For

PT-141

by Peptuvia· batch PSPT10-1

Aggregated · 3rd-party listing
99.00 %
Sep 2026
Ethos Analytics Strong

For

PT-141

by Glacier Aminos· batch PT10GA-04

✓ Vendor-published
99.72 %
Aug 2026
Janoshik Analytical Limited

For

PT-141

by Verified Peptides· batch PT05261410K

COA on file
Aggregated · 3rd-party listing
99.65 %
Aug 2026
ILS Labs Strong

For

PT-141

by Certified Peptides· batch pt1-001

Aggregated · 3rd-party listing
99.90 %
Jul 2026
Krause Analytical

For

PT-141

by VoriLabs· batch VoriLabs PT14-2607-A

Aggregated · 3rd-party listing
99.89 %
Jul 2026
ILS Labs Strong

For

PT-141

by jdbioworks· batch 2026-002

Aggregated · 3rd-party listing
99.32 %
Jul 2026
ILS Labs Strong

For

PT-141

by Artisan Aminos· batch AA-PT10-049

Aggregated · 3rd-party listing
99.76 %
Jul 2026
Freedom Diagnostics Moderate

For

PT-141

by Synthesis Peptides· batch PT10826

Aggregated · 3rd-party listing
99.90 %
Jul 2026
BTLabs Moderate

For

PT-141

by VoriLabs· batch PT14-2606-A

Aggregated · 3rd-party listing
99.00 %
Jul 2026
Ethos Analytics Strong

For

PT-141

by OROS Research· batch OR-LPPT10-626-B4

Aggregated · 3rd-party listing
99.21 %
Jul 2026
Horizon Analytical

For

PT-141

by Blank Peptides· batch B-3230947-P

Aggregated · 3rd-party listing
99.79 %
Jun 2026
Janoshik Analytical Limited

For

PT-141

by Verified Peptides

Aggregated · 3rd-party listing
99.94 %
Jun 2026
ILS Labs Strong

For

PT-141

by Orbitrex Peptides· batch PT10726US

Aggregated · 3rd-party listing
99.97 %
Jun 2026
ILS Labs Strong

For

PT-141

by NG Peptide· batch pt10-1640

✓ Vendor-published
99.74 %
Jun 2026
Kovera Labs

For

PT-141

by Peptide Partners· batch PT202605

COA on file
Aggregated · 3rd-party listing
99.58 %
Jun 2026
Freedom Diagnostics Moderate

For

PT-141

by Novaglo Research· batch 30060326PT

Aggregated · 3rd-party listing
99.95 %
Jun 2026
Freedom Diagnostics Moderate

For

PT-141

by Modern Research Peptides· batch 698221F

Aggregated · 3rd-party listing
99.90 %
Jun 2026
Freedom Diagnostics Moderate

For

PT-141

by Nova Peptides· batch NV-P-U5U2

Research depth

16 citations indexed for PT-141

All research on PT-141 →

review · 2026

Clinical trial evidence on emerging pharmacological therapies for hypoactive sexual desire disorder in women: a systematic review and analysis of completed studies registered on ClinicalTrials.gov

Background Hypoactive Sexual Desire Disorder (HSDD) is a prevalent and distressing condition affecting adult women and is associated with significant impairments in quality of life and interpersonal relationships.

review · 2026

Phytochemical-based nanomedicine as a promising therapeutic strategy for erectile dysfunction

Erectile dysfunction (ED) is a common condition among aging men, often associated with metabolic disorders, diabetes mellitus, hypertension, oligozoospermia, cardiovascular disease, sedentary lifestyles, chronic infections, and inflammation.

review · 2026

Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives

Therapeutic peptides are short chains of amino acids used to treat metabolic and endocrine conditions such as obesity and type 2 diabetes.

review · 2026

Therapeutic peptides in gerontology: mechanisms and applications for healthy aging

Background Peptide therapeutics represent an emerging frontier in gerontological medicine, targeting fundamental hallmarks of aging including metabolic dysfunction, telomere attrition, tissue repair impairment, and hormonal decline.

review · 2025

Intravenous peptides and amino acids for erectile dysfunction: a narrative review of current applications and future directions

Introduction Erectile dysfunction (ED) pathophysiology involves complex interactions between vasculogenic, hormonal, and neurological mechanisms, with endothelial dysfunction and oxidative stress playing crucial roles.

rct · 2015

2. Study to Evaluate the Efficacy/Safety of Bremelanotide in Premenopausal Women With Hypoactive Sexual Desire Disorder

A Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel-group Trial with an optional Open-label Extension to evaluate the efficacy of bremelanotide (BMT), administered subcutaneously (SC) on an as needed basis for the treatment of HSDD (with or without decreased arousal) in premenopausal females.