Analytical testing reported batch purity of at least 99% for this peptide by HPLC-UV, assayed on a per-lot basis.
HPLC-UV purity
Assayed per lot
Search peptides — top sellers first
Search peptides — top sellers first
Search peptides — top sellers first
A brain-first pathway to arousal, studied in labs
$59/ 10mg vial
$29.50 per vial with Buy 1, Get 1 Free
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In stock
Frequently bought together
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Certificate of analysis
We don't publish a brand-wide spec sheet and call it a “COA.” The certificate you receive references the actual lot number stamped on your vial — with the raw chromatograms attached.
Purity by HPLC-UV
99.91%
Contaminant screens
Accurate Lab Tests
Independent analytical lab
Certificate of Analysis
RESULT · PASS
PT-141 10mg
HPLC purity
99.91%
Pass · Meets spec
Tested
20 Aug 2026(26 days ago)
HPLC-UV + LC-MS
Analytical results
HPLC Chromatogram
Main peak 99.91% · other 0.09%
Alex JohnsonPrincipal Chemist
Authentichain · Verified 9×
The process
Four steps, every lot. The certificate is published before the vial ships.

Made in a controlled facility
Documented, repeatable steps for every batch.

Purity tested
An outside lab measures it and reports the exact number.

Identity confirmed
A second test proves it is what the label says.
Live
Accurate Lab Tests
99.91%
Purity by HPLC-UV
Report published
Signed, filed by lot number, and public before the vial ships.

Researchers study PT-141 as acting through three melanocortin-linked routes in the central nervous system.
It activates the MC4 receptor in the brain, a switch preclinical models tie to sexual arousal signaling.
Its effects are studied as central — driven by nervous-system signaling rather than changes in blood flow.
Animal studies suggest melanocortin activation may feed into dopamine-related arousal circuits.
For research use only. Mechanisms described reflect published preclinical and clinical literature.
Anyone can show you one good report. Here is every batch of PT-141 we have ever released, newest first, each with its own signed report. Nothing hidden, nothing cherry-picked.
Published findings on this compound, each linked to its source. Animal and lab results are context, not claims about this product.
Published research on the reference compound class. Provided for scientific context only. Not a claim about the product supplied.
Analytical testing reported batch purity of at least 99% for this peptide by HPLC-UV, assayed on a per-lot basis.
HPLC-UV purity
Assayed per lot
In animal models of both sexes, arousal signaling was observed through central nervous-system pathways rather than through the vascular effects seen with other compounds.
Relative emphasis reported in animal models, not a measured ratio
Receptor pharmacology studies reported agonist activity at melanocortin receptors, with MC4R identified as the main receptor engaged.
Illustrative of reported receptor emphasis, not a binding measurement
Quick answers about PT-141.
Test any batch at any lab you like. If it doesn't match our report, you get every dollar back. No return shipping, no forms, no arguments.