NEA Diagnostics
ZP

ZLZ Peptide

KPV

221 tests · latest 18 Mar 2026

51%
NEA rating
#7 of 9 KPV vendors

3 of 5 classifiable tests passed

natural 88% · customers 4.5★ (15)

NEA analysis · KPV

ZLZ Peptide KPV has a notable caveat despite an acceptable purity signal at 95.6%: fill runs slightly under at 93.4% of label, a roughly 7% gap. Treat older lots with caution.

Balanced — purity 98%+, dose ±20%methodology

Peptides

13 rated · tap to focus
#PeptideRatingN
1KPVselected51%5
2Sermorelin44%18
3CJC 129529%19
4Cagrilintide23%27
5Kisspeptin 1023%22
6Ipamorelin0%17
7GHK Cu0%1
8Epithalon0%16
9Semax0%25
10Hexarelin0%33
11Mazdutide0%17
12SS 310%9
135 Amino 1MQ0%12
Rating trend

KPV rating from this vendor, after each test

ZLZ Peptide KPV test history

5 tests · 3 pass · 2 fail

COA-backed lab tests
DateResultPurityDosageLabel
18 Mar 2026Pass97.54%Identity Pass-6.9%27.93 mg tested / 30 mg labelBatch KP202605sent by Vendor
6 Mar 2026Fail90.52%Purity Fail-3.9%28.83 mg tested / 30 mg labelBatch KP202604sent by Public
9 Feb 2026Pass95.6%Identity Pass-5.4%28.38 mg tested / 30 mg labelBatch KP202603sent by Vendor
21 Jan 2026Fail97.08%Content Fail-13.4%25.98 mg tested / 30 mg labelBatch KP202602sent by Public
27 Dec 2025Pass97.51%Identity Pass-3.2%29.04 mg tested / 30 mg labelBatch KP202601sent by Vendor
1-5 of 5
← All vendors