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Reproductive Research
PT-141
Lyophilized in the USA1025.18 g/molCyclic heptapeptide
PT-141, also known as bremelanotide, is a synthetic cyclic peptide. It is an analog of alpha-melanocyte-stimulating hormone (alpha-MSH). We supply it as a 10MG lyophilized powder for lab research.
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Your purchasing batch
PT02
Certificate on record · 2 lots published
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Per-batch COA access
Every order ships with certificate access for its lot
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Verified test results
Every batch, independently verified.
Each batch is analyzed by an independent third-party laboratory before release. The lots below were tested by Chromate and ILS Laboratories. Below is the report for lot PT02, summarized from the certificate the lab published.
ILSPASS
ILS Laboratories
Independent · ISO/IEC 17025 accredited
99.72%
Purity by HPLCSPEC ≥ 95.0%
Lot
PT02
Tested
Oct 19, 2026
Labeled
10mg
Measured
10.29mg
ISO 17025 accreditedFull QC panel2 lots on record
View the signed certificate →
Full QC Panel✓ 1 passed · 1 reported
Purity
HPLC
99.72%
SPEC ≥ 95.0%
PASS
Net peptide content
Per certificate
10.29mg
REPORT ONLY
REPORTED
Every batch on record
Every lot we have published for this compound, grouped by the lab that tested it, newest first. Open any certificate below, exactly as the lab released it.
ILS Laboratories2 certificates
Side by side
How Disguised compares.
Disguised
Typical supplier
Per-batch third-party COA
Yes
Rarely provided
ISO 17025 lab testing
Yes
Inconsistent
HPLC purity verified
Yes
Often unverified
Endotoxin tested
Yes
Rarely
Conformity testing
Yes
Not standard
Fentanyl screening
Yes
Not standard
Made & tested in the USA
Yes
Often overseas
Discreet, tracked shipping
Yes
Varies
Technical specifications
Compound Information
Read the PT-141 research guideAlso available as PT-141 Aerosol KitCompare PT-141 vs Melanotan 2Peptide storage guideHow to reconstitute peptidesMolecular Profile
What is PT-141?
Molecular FormulaC₅₀H₆₈N₁₄O₁₀
Molecular Weight1025.18g/mol
Peptide ClassCyclic heptapeptide
Storage Requirements
Stability information.
Avoid freeze/thaw cyclesProtect from lightRefrigerate after reconstitution
−20°C
Lyophilized powder, as shipped
The most stable form. Store cold and protected from light until it is reconstituted.
2–8°C
After reconstitution
Refrigerate once reconstituted and keep it protected from light.
Peer-reviewed literature
The research behind this compound, cited in full.
Every reference below is a published, peer-reviewed record, linked to its PubMed entry. Provided for educational reference only - not product claims.
01Current opinion in investigational drugs (London, England : 2000) · 2004PT-141 PalatinHedlund P02Urology · 2005Co-administration of low doses of intranasal PT-141, a melanocortin receptor agonist, and sildenafil to men with erectile dysfunction results in an enhanced erectile responseDiamond LE, et al.03International journal of impotence research · 2004Evaluation of the safety, pharmacokinetics and pharmacodynamic effects of subcutaneously administered PT-141, a melanocortin receptor agonist, in healthy male subjects and in patients with an inadequate response to ViagraRosen RC, et al.04International journal of impotence research · 2004Double-blind, placebo-controlled evaluation of the safety, pharmacokinetic properties and pharmacodynamic effects of intranasal PT-141, a melanocortin receptor agonist, in healthy males and patients with mild-to-moderate erectile dysfunctionDiamond LE, et al.
Important research notice
Not for human, veterinary, or food use. This product is sold exclusively for laboratory research purposes. It is not intended to diagnose, treat, cure, or prevent any disease, and has not been evaluated by the FDA.
All referenced publications and registries are sourced from peer-reviewed journals and official registries. They are provided for educational reference only and are not product claims.
By purchasing, you confirm you are a qualified researcher and will handle this product in accordance with all applicable laws and regulations.
Ready when you are
Nothing ships without paperwork. Every lot is on record.
The lot on this page links to the signed certificate for that batch.
2Lots on record
99.72%HPLC purity, latest lot
17025ISO/IEC accredited lab