The Definitive Peptide Research Reference Guide — Compound Review

Where to BuyPT-141

Where to Buy PT-141
Online for Research

PT-141 (Bremelanotide) is a melanocortin receptor agonist (MC1R, MC3R, MC4R) studied for its effects on sexual function and libido in both male and female subjects. This guide covers what to look for in a reputable vendor, red flags to avoid, and our top-rated source for research-grade PT-141.

Buy PT-141 at Purgo Labs

Research-Grade PT-141 — Quick Reference

Purity
≥98%
Form
lyophilized powder
Vial Size
10mg
Price Range
$35–$65

What to Look for When Buying PT-141

The research peptide market is largely unregulated. Quality varies significantly between vendors. Here are the non-negotiable criteria for sourcing research-grade PT-141:

Third-party COA from an accredited US lab (HPLC + mass spectrometry)
Purity 98% or higher confirmed by HPLC analysis
Correct molecular weight verified by mass spectrometry
Lyophilized powder in sealed, labeled vials
US-based manufacturer with verifiable address
Transparent return and quality guarantee policy

COA Note: PT-141 is a cyclic heptapeptide (MW approximately 1,025 Da). Verify HPLC purity 98% or higher and mass spec confirmation. Note: PT-141 (bremelanotide) is FDA-approved as Vyleesi — research-grade versions are for laboratory use only.

Red Flags to Avoid

No certificate of analysis, or COA from an unaccredited lab
Price significantly below market rate (often indicates underdosing)
Vague sourcing with no lab details or country of origin
No customer service contact or physical address
Claims of FDA approval or human-use authorization
Suspiciously high purity claims without documentation

Our Recommended Source for PT-141

Purgo Labs is our top-rated vendor for research-grade PT-141. Every batch is tested by an independent US laboratory with full HPLC and mass spectrometry analysis. COAs are published on the product page and updated with each new lot.

  • Third-party HPLC + mass spec COA on every product page
  • US-based synthesis and fulfillment
  • Purity guaranteed 98% or higher or full replacement
  • Use code HEALTH for 15% off your first order
Buy PT-141 at Purgo Labs

Frequently Asked Questions

Is PT-141 the same as bremelanotide?

Yes — PT-141 is the research name for bremelanotide, which is FDA-approved as Vyleesi for hypoactive sexual desire disorder in premenopausal women. Research-grade PT-141 is available for laboratory research purposes.

What purity should PT-141 be?

Research-grade PT-141 should be 98% or higher purity by HPLC with mass spectrometry confirming the molecular weight of approximately 1,025 Da.

How is PT-141 stored?

Lyophilized PT-141 should be stored at -20 degrees Celsius. Once reconstituted, store at 2 to 8 degrees Celsius and use within 30 days.

How much does PT-141 cost?

A 10mg vial of research-grade PT-141 typically costs $35 to $65 from reputable US vendors.

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Ready to Source Research-Grade PT-141?

Purgo Labs provides pharmaceutical-grade research peptides with third-party COAs. Use code HEALTH for 15% off your first order.

Visit Purgo Labs

Medical Disclaimer: All content on this site is for educational and research purposes only. Research peptides are not FDA-approved for human use. Always consult a qualified healthcare professional before considering any peptide or supplement protocol. Nothing on this site constitutes medical advice, diagnosis, or treatment.