Finnrick - Ensuring a Safer and More Transparent Supply Chain

PT-141(Bremelanotide)

We've tested 54 samples of PT-141 sourced from 18 vendors between 16 Mar 2025 and 10 Sep 2025. Purity varies from 89.13% to 100.00%, and quantity can diverge by up to +/-86% vs advertised value.

Finnrick Top 3™ - 12 Sep 2025
PT-141
1
Peptide Sciences
A
GREAT
2
Polaris Peptides
A
GREAT

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Vendors

Tests
Vendor
Rating
CountAvgMinMaxOldestMost Recent
Peptide SciencesPeptide Sciences
A
Great
69.17.09.77 May 202512 Aug 2025
Polaris PeptidesPolaris Peptides
A
Great
67.46.79.011 Aug 202519 Aug 2025
PeptidologyPeptidology
A
Great
49.89.410.013 Jun 202511 Aug 2025
Peptide TechnologiesPeptide Technologies
A
Great
28.98.79.216 Mar 202516 Mar 2025
Planet PeptidePlanet Peptide
A
Great
37.46.48.125 Apr 20257 May 2025
Verified PeptidesVerified Peptides
B
Good
46.55.97.016 Mar 20257 May 2025
Nuscience PeptidesNuscience Peptides
C
Okay
25.75.75.77 May 20257 May 2025
ScienceScience
C
Okay
25.75.65.821 May 202521 May 2025
Paramount PeptidesParamount Peptides
C
Okay
38.04.79.825 Apr 20257 May 2025
Biolabshop LimitedBiolabshop Limited
C
Okay
25.84.37.313 Jun 202512 Aug 2025
Atomik LabzAtomik Labz
C
Okay
46.54.28.67 May 202521 May 2025
Biolongevity LabsBiolongevity Labs
C
Okay
35.74.27.013 Jun 202512 Aug 2025
DeuschemDeuschem
D
Poor
45.94.07.313 Jun 20254 Aug 2025
Pharma Grade PeptidesPharma Grade Peptides
D
Poor
25.23.27.27 May 20257 May 2025
Peptide GurusPeptide Gurus
E
Bad
33.02.93.216 Mar 202516 Mar 2025
SRY LabsSRY Labs
E
Bad
22.21.82.526 Jun 202529 Jun 2025
OupeptideOupeptide
X
Unrated
14.74.74.724 Jul 202524 Jul 2025
Amino AsylumAmino Asylum
X
Unrated
12.52.52.516 Mar 202516 Mar 2025

Most recent PT-141 tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
Label
Batch
TestedDifferencePurityBatch IDContainerTested AtSent By
19 Aug 2025Polaris PeptidesView6.915mg
14.9mg
13.050mg-12.3%99.86%POL-PT14110-1Black Label / Silver Crimp / Red CapLab AFinnrick
19 Aug 2025Polaris PeptidesView6.710mg
11.6mg
10.730mg-7.6%99.29%POL-PT14110-4Black Label / Blue Crimp / Clear CapLab AFinnrick
19 Aug 2025Polaris PeptidesView6.715mg
14.9mg
12.790mg-14.0%99.86%POL-PT14110-1Black Label / Silver Crimp / Red CapLab AFinnrick
19 Aug 2025Polaris PeptidesView7.110mg
11.6mg
10.870mg-6.4%99.28%POL-PT14110-4Black Label / Blue Crimp / Clear CapLab AFinnrick
12 Aug 2025Peptide SciencesView7.010mg(no batch claim)12.200mg+22.0%100.00%VI1420241021-10White Label / Silver Crimp / Purple CapLab GFinnrick
12 Aug 2025Biolongevity LabsView7.05mg(no batch claim)5.400mg+8.0%100.00%(no batch ID)White Label / Gold Crimp / Purple Cap Lab GFinnrick
12 Aug 2025Biolabshop LimitedView7.310mg(no batch claim)10.100mg+1.0%99.60%(no batch ID)White Label / Silver Crimp / Clear Blue CapLab GFinnrick