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Peptide testing

Ordered Retatrutide from Pure Peptide Labs? Mail in a sample (US only) and let us test it.

Test my supply
71%
Finnrick rating
#344 of 417 Retatrutide vendors
2 of 4 classifiable tests passed
natural 50% · customers 4.2★ (10)
methodology · Purity focus
Finnrick analysis · Retatrutide

Pure Peptide Labs' Retatrutide evidence turned sharply negative after two clean earlier tests: one October sample failed identity, and the next measured 33.7% purity with -66% fill. The score is prior-smoothed; batch details matter.

methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutideselected
$0.55
71%
4
2
BPC-157
$4.99
46%
4
5
TB-500
-
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%6 Mar 2026: 79%2 Aug 2026: 80%8 Oct 2026: 75%16 Oct 2026: 71%12 Nov 2026: current 71%79%80%71%Mar 26Nov 26
Showing Retatrutide tests only
Pure Peptide Labs Retatrutide test history
COA-backed lab tests

About Pure Peptide Labs test results from Finnrick

Pure Peptide Labs is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 2 peptides and 8 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 Pure Peptide Labs peptides in this dataset are BPC-157 (4 tests), Retatrutide (4 tests) and Ipamorelin (0 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 8 recent tests.

Corrections
No corrections.
Peptide testing

Ordered Retatrutide from Pure Peptide Labs? Mail in a sample (US only) and let us test it.

Test my supply