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Ordered peptides from Mei Peptide? Mail in a sample (US only) and let us test it.

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+1 more ↓
81%
Finnrick rating
#48 of 457 ranked vendors
6 of 8 classifiable tests passed
methodology · Purity focus
methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
GHK-Cu
$0.05
88%
3
2
Retatrutide
$1.40
73%
5
4
KPV
$1.40
-
0
5
PT-141
-
-
0
8
Tirzepatide
$1.25
-
0
9
Wolverine
$0.60
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%5 Oct 2025: 75%6 Mar 2026: 80%18 Mar 2026: 85%2 Jun 2026: 83%16 Jun 2026: 84%13 Jul 2026: 82%20 Jul 2026: 82%31 Aug 2026: 82%5 Oct 2026: current 81%75%80%81%Oct 25Oct 26
Mei Peptide test history
COA-backed lab tests
DateResultTestLabPurityDosageLabelCOA
31 Aug 2026
Pass
Retatrutide
lab nameView COA
20 Jul 2026
Pass
GHK-Cu
lab nameView COA
13 Jul 2026
Fail
Retatrutide
lab nameView COA
16 Jun 2026
Pass
GHK-Cu
lab nameView COA
2 Jun 2026
Fail
Retatrutide
lab nameView COA
18 Mar 2026
Pass
GHK-Cu
lab nameView COA
6 Mar 2026
Pass
Retatrutide
lab nameView COA
5 Oct 2025
Pass
Retatrutide
lab nameView COA

About Mei Peptide test results from Finnrick

Mei Peptide is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 2 peptides and 8 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 Mei Peptide peptides in this dataset are GHK-Cu (3 tests), Retatrutide (5 tests) and KPV (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 8 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered peptides from Mei Peptide? Mail in a sample (US only) and let us test it.

Test my supply