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Peptide testing

Ordered Retatrutide from PX Peptides? Mail in a sample (US only) and let us test it.

Test my supply
79%
Finnrick rating
#142 of 417 Retatrutide vendors
2 of 2 classifiable tests passed
natural 100%
methodology · Purity focus
methodology →
Peptides
#
Peptide
$/MG
Rating
N
2
Retatrutideselected
-
79%
2
Contact channels
Vendor policies

Batch identification policy

Lot numbers are displayed at the bottom on the vial. The lot will naming system is company name (PX)- Product code-year and month-lot number. Example: PX-TR15-2608-001

Sample authentication guidance

Silver label with product name, quantity, RUO label and lot number stacked.

Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%18 Sep 2026: 79%18 Sep 2026: 80%12 Nov 2026: current 79%79%79%Sep 26Nov 26
Showing Retatrutide tests only
PX Peptides Retatrutide test history
COA-backed lab tests
DateResultTestLabPurityDosageLabelCOA
18 Sep 2026Pass
Tested
lab nameView COA
18 Sep 2026Pass
Tested
lab nameView COA

About PX Peptides test results from Finnrick

PX Peptides is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 2 peptides and 4 tests, including ratings, observed price signals, recent test dates, and correction history where available.

Finnrick ratings are calculated from published sample data using the selected rating standard. The default standard evaluates purity, dose accuracy, and label quality, then adjusts low-volume results so small sample counts do not appear more certain than the data supports.

The most visible PX Peptides peptides in this dataset are Retatrutide (2 tests) and Tirzepatide (2 tests). Use the peptide table above to compare the current Finnrick rating, price per mg, and sample volume for each peptide.

Recent tests and corrections are shown below when available. Samples may be acquired by Finnrick directly or submitted through Finnrick testing programs; the goal is to make safety and supply-chain evidence easier to evaluate than vendor marketing claims alone. This page currently lists 4 recent tests.

Corrections
No corrections.
Peptide testing

Ordered Retatrutide from PX Peptides? Mail in a sample (US only) and let us test it.

Test my supply