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Ordered Tesamorelin from ZLZ Peptide? Mail in a sample (US only) and let us test it for free.

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+6 more ↓
43%
Finnrick rating
#83 of 106 Tesamorelin vendors
7 of 18 classifiable tests passed
natural 39% · customers 4.5★ (6)
methodology · Purity focus
Finnrick analysis · Tesamorelin

ZLZ Peptide's Tesamorelin rating is held down by repeated sub-99.5% purity results, including a 95.05% test, despite identity passing throughout. Recent 99.9% purity passes improve the trajectory, but batch identifiers remain uneven.

methodology →
vendor intelligence report
Vendor Intelligence Report: ZLZ Peptide

Corporate and B2B records trace ZLZ’s storefront to a Hunan chemical-intermediate operator with BMK/PMK precursor listings. The report also maps altered-COA allegations, alias-led sales channels, irreversible payment rails, and lookalike-domain risk.

30 pages7 risk factors assessed3 Jul 2026
read the report
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutide
$0.75
91%
107
2
GHK-Cu
$0.07
85%
19
3
Tirzepatide
$0.43
85%
96
4
Semaglutide
$0.49
73%
12
6
PT-141
$0.62
71%
3
7
Melanotan II
$0.54
66%
2
9
Sermorelin
$1.52
55%
5
10
BPC-157
$0.68
48%
13
11
Tesamorelinselected
$2.00
43%
18
12
CJC-1295
-
42%
5
13
TB-500
$1.76
37%
6
14
NAD+
$0.02
20%
4
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%4 Aug 2025: 16%30 Sep 2025: 28%9 Oct 2025: 29%9 Oct 2025: 27%23 Oct 2025: 26%4 Nov 2025: 24%9 Jan 2026: 24%9 Jan 2026: 22%15 Jan 2026: 26%2 Feb 2026: 26%20 Feb 2026: 32%28 Apr 2026: 39%20 May 2026: 43%24 Jun 2026: 41%24 Jun 2026: 39%23 Jul 2026: 37%6 Aug 2026: 40%4 Sep 2026: 43%29 Sep 2026: current 43%16%24%43%Aug 25Sep 26
Showing Tesamorelin tests only
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Ordered Tesamorelin from ZLZ Peptide? Mail in a sample (US only) and let us test it for free.

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ZLZ Peptide Tesamorelin test history
COA-backed lab tests
1-10 of 18

About ZLZ Peptide test results from Finnrick

ZLZ Peptide is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 14 peptides and 299 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 ZLZ Peptide peptides in this dataset are Retatrutide (107 tests) and CJC-1295 (5 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 200 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered Tesamorelin from ZLZ Peptide? Mail in a sample (US only) and let us test it for free.

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