Finnrick - Ensuring a Safer and More Transparent Supply Chain
YB Peptide

YB Peptide

Tirzepatide

Finnrick tested 4 samples of Tirzepatide (GLP-1 and GIP agonist) from YB Peptide between 28 Jul 2025 and 1 Jun 2026. Test scores average over 4, no score below 3, and at least 2 tests warrant a tentative Finnrick Rating of D (Poor).

Finnrick Rating™
Tentative Rating
YB Peptide
Tirzepatide
Tested 4 Samples
Last test 1 Jun 2026

Take Action

Free peptide testing

Mail in a sample (US only) to get confidence for the specific vials you have, and contribute to identifying unsafe supply chains, so other people can avoid risky and costly mistakes.

Other Tirzepatide tests from top-rated vendors:

All Tirzepatide tests from YB Peptide

Samples are tested in commercial labs

Tests Count

4

Scores

AVG5.6MIN3.8MAX6.5

Last

1 Jun 2026

First

28 Jul 2025
Quantity
Test DateCertificate
Test Score
LabelTestedDifferencePurityEndotoxinsBatch IDContainerTested AtSent By
1 Jun 2026View6.230mg36.1mg+20.3%99.60%
below LOQ
TZ05260026White label / Copper crimp / Clear capLab EPublic
29 Dec 2025View6.520mg27.4mg+37.0%99.80%n/a12032025TR20White Label / Silver Crimp / Gray CapLab GPublic
25 Nov 2025View5.79.89mg8.49mg-14.2%99.95%n/a(no batch ID)No Label / Silver Crimp / Clear Green Cap Lab EPublic
28 Jul 2025View3.815mg16.69mg+11.3%98.63%n/a(no batch ID)No Label / Silver Crimp / Blue Cap Lab APublic
Test my peptides for free