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.

Real-time market data

Pricing for PT-141

Live vendor pricing, normalized to $/mg so sizes compare fairly — fused with each seller's Merit trust score and latest independent COA purity. Prices refresh daily.

Independent evidence

COAs for PT-141

71 third-party tests across 21 vendors. Each card links to the full report.

All 71 COAs for PT-141 →
Measured purity 98.9%–100.0% across 42 COAs
Measured purity over time
Aggregated · 3rd-party listing
99.91 %
May 2026
Janoshik Analytical

For

PT-141

by EZ Peptides· batch EZP-PT1005172026-08

Aggregated · 3rd-party listing
99.93 %
May 2026
ILS Labs · HPLC

For

PT-141

by Crush Research· batch CRPT-10-2605-1

Aggregated · 3rd-party listing
99.78 %
May 2026
Janoshik Analytical · HPLC

For

PT-141

by Verified Peptides· batch PT03261310J

Aggregated · 3rd-party listing
99.87 %
May 2026
Freedom Diagnostics

For

PT-141

by Real Peptides· batch White Cap

Aggregated · 3rd-party listing
99.77 %
Apr 2026
Janoshik Analytical · HPLC

For

PT-141

by Verified Peptides· batch cmpds11k4002104l7jqg8dx52

Aggregated · 3rd-party listing
99.93 %
Apr 2026
Janoshik Analytical · HPLC

For

PT-141

by Skye Peptides· batch PT26-10-002

Aggregated · 3rd-party listing
99.76 %
Apr 2026
MDx BioAnalytical Laboratory · HPLC

For

PT-141

by BioLongevity Labs· batch 25-3-43136

Aggregated · 3rd-party listing
99.92 %
Apr 2026
Freedom Diagnostics

For

PT-141

by IDUN Peptides· batch PT10-260331

Aggregated · 3rd-party listing
99.95 %
Apr 2026
ILS Labs

For

PT-141

by NG Peptide· batch PT10-1639

Aggregated · 3rd-party listing
99.90 %
Apr 2026
Janoshik Analytical · HPLC

For

PT-141

by Peptidegurus· batch 24th Feb 2026

Aggregated · 3rd-party listing
99.86 %
Apr 2026
Freedom Diagnostics · HPLC

For

PT-141

by Peptide Plugs· batch 112-U

Aggregated · 3rd-party listing
99.92 %
Apr 2026
Janoshik Analytical · HPLC

For

PT-141

by Qihang Peptide· batch 4

Aggregated · 3rd-party listing
99.71 %
Apr 2026
Biogenica Labs · HPLC

For

PT-141

by Amino Club· batch PT0001

Aggregated · 3rd-party listing
99.95 %
Apr 2026
Kovera Labs

For

PT-141

by Ion Peptide· batch PT141-04022026

Aggregated · 3rd-party listing
99.93 %
Mar 2026
Kovera Labs · HPLC

For

PT-141

by Mile High Compounds· batch PT1-010-MH-02

Aggregated · 3rd-party listing
99.97 %
Mar 2026
Kovera Labs · HPLC

For

PT-141

by Glacier Aminos· batch PT10GA-02

Aggregated · 3rd-party listing
99.92 %
Feb 2026
Janoshik Analytical · HPLC

For

PT-141

by Verified Peptides· batch PT03261310J

Aggregated · 3rd-party listing
99.46 %
Feb 2026
Freedom Diagnostics · HPLC

For

PT-141

by Peptide Supply Co.· batch PSCPT410001

Aggregated · 3rd-party listing
99.47 %
Feb 2026
MZ Biolabs · HPLC

For

PT-141

by Ascension Peptides· batch 28-01260229

Aggregated · 3rd-party listing
99.47 %
Feb 2026
MZ Biolabs · HPLC

For

Bremelanotide

by Ascension Peptides· batch 28-01260229

Aggregated · 3rd-party listing
99.64 %
Jan 2026
BioRegen · HPLC

For

PT-141

by BioLongevity Labs· batch 25-3-46035

Aggregated · 3rd-party listing
99.87 %
Jan 2026
Janoshik Analytical · HPLC

For

PT-141

by Skye Peptides· batch PT26-10-001

Aggregated · 3rd-party listing
99.77 %
Jan 2026
MDx BioAnalytical Laboratory · HPLC

For

PT-141

by BioLongevity Labs· batch QC260247

Aggregated · 3rd-party listing
99.79 %
Jan 2026
Janoshik Analytical · HPLC

For

PT141

by Verified Peptides· batch PT01261210I

Research depth

17 citations indexed for PT-141

All research on PT-141 →

Study · 2026

Evaluation of Research Grade Peptides Marketed Directly to Consumers Reveals Extensive Variability in Purity and Measured Abundance

Peptides are a rapidly expanding drug class with a parallel and largely unregulated gray market that sells preparations directly to consumers for self-administration.

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.

Study · 2026

Injuries, Injections, and Internet Forums: A Qualitative Study of Reddit User Perspectives on Peptide Therapy After Orthopaedic Surgery

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.

Study · 2024

A multimodal fusion network based on a cross-attention mechanism for the classification of Parkinsonian tremor and essential tremor

Parkinsonian tremor (PT) and Essential tremor (ET) exist as upper limb tremors in clinical practice. Notably, their types of trembling share similar presentations and overlapping frequencies.