Free peptide testing

Ordered Retatrutide from VertexBio? Mail in a sample (US only) and let us test it for free.

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52%
Finnrick rating
#1 of 256 Retatrutide vendors
0 of 7 classifiable tests passed
natural 0% · customers 4.8★ (16)
methodology · Purity focus
methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutideselected
$0.76
52%
7
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%17 Jun 2026: 75%22 Jun 2026: 72%9 Jul 2026: 68%3 Aug 2026: 63%4 Aug 2026: 59%12 Aug 2026: 55%18 Aug 2026: 52%28 Aug 2026: current 52%75%63%52%Jun 26Aug 26
Showing Retatrutide tests only
VertexBio Retatrutide test history
COA-backed lab tests
DateResultTestLabPurityDosageLabelCOA
18 Aug 2026Fail
Tested
lab nameView COA
12 Aug 2026Fail
Tested
lab nameView COA
4 Aug 2026Fail
Tested
lab nameView COA
3 Aug 2026Fail
Tested
lab nameView COA
9 Jul 2026Fail
Tested
lab nameView COA
22 Jun 2026Fail
Tested
lab nameView COA
17 Jun 2026Fail
Tested
lab nameView COA

About VertexBio test results from Finnrick

VertexBio is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 7 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 VertexBio peptides in this dataset are Retatrutide (7 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 7 recent tests.

Corrections
No corrections.

Free peptide testing

Ordered Retatrutide from VertexBio? Mail in a sample (US only) and let us test it for free.

Test my supply