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Ordered TB-500 from Cocer Peptides? Mail in a sample (US only) and let us test it for free.

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36%
Finnrick rating
#33 of 58 TB-500 vendors
1 of 3 classifiable tests passed
natural 33% · customers 4.1★ (1)
methodology · Purity focus
Finnrick analysis · TB-500

Cocer Peptides has a narrow, current purity-focus record led by cleaner Retatrutide passes, but the evidence is dispersed rather than steady. Retatrutide later swings to an identity/purity failure after a major overfill, while Tesamorelin's weak points are repeated large overfills; limited volume keeps uncertainty high.

methodology →
vendor intelligence report
Vendor Intelligence Report: Cocer Peptides

WHOIS and domain evidence test Cocer’s experience claims while mapping a fragmented brand surface, including a confirmed .top impersonation and a shifting .net storefront. The report also traces self-submitted COAs, fake-tracking complaints, and weak recourse rails.

20 pages8 risk factors assessed2 Jul 2026
read the report
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutide
$1.70
74%
5
2
Tesamorelin
$1.60
47%
4
3
TB-500selected
$1.00
36%
3
4
BPC-157
$0.75
-
0
5
GHK-Cu
$0.11
-
0
6
GLOW
-
-
0
7
Ipamorelin
$1.00
-
0
8
Tirzepatide
$1.80
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%4 Feb 2026: 32%18 Feb 2026: 34%12 Mar 2026: 37%29 Sep 2026: current 36%32%36%Feb 26Sep 26
Showing TB-500 tests only
Cocer Peptides TB-500 test history
COA-backed lab tests

About Cocer Peptides test results from Finnrick

Cocer Peptides is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 3 peptides and 12 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 Cocer Peptides peptides in this dataset are Retatrutide (5 tests), TB-500 (3 tests) and Tesamorelin (4 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 12 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered TB-500 from Cocer Peptides? Mail in a sample (US only) and let us test it for free.

Test my supply