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Peptide testing

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

Test my supply
70%
Finnrick rating
#359 of 417 Retatrutide vendors
0 of 2 classifiable tests passed
natural 0% · customers 4.1★ (9)
methodology · Purity focus
Finnrick analysis · Retatrutide

Cytlink Retatrutide is dragged down by repeated identity failures, not marginal purity or fill misses. The October and November PharmLabs COAs for July 2026 and N/A Pink Top batches left no usable purity or quantity signal.

methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutideselected
-
70%
2
3
PT-141
-
-
0
4
Selank
-
-
0
5
TB-500
-
-
0
7
Tirzepatide
$0.75
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%15 Oct 2026: 73%6 Nov 2026: 70%12 Nov 2026: current 70%73%70%Oct 26Nov 26
Showing Retatrutide tests only
Cytlink Retatrutide test history
COA-backed lab tests
DateResultTestLabPurityDosageLabelCOA
6 Nov 2026Fail
Tested
lab nameView COA
15 Oct 2026Fail
Tested
lab nameView COA

About Cytlink test results from Finnrick

Cytlink is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 2 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 Cytlink peptides in this dataset are Retatrutide (2 tests), Tirzepatide (0 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 2 recent tests.

Corrections
No corrections.
Peptide testing

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

Test my supply