NEW SITE — FASTER TURNAROUND, MORE LABS. READ ON
Peptide testing

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

Test my supply
+1 more ↓
75%
Finnrick rating
#261 of 417 Retatrutide vendors
5 of 7 classifiable tests passed
natural 71% · customers 4.4★ (15)
methodology · Purity focus
Finnrick analysis · Retatrutide

Peptide Makers Retatrutide is held down by an early 91% purity result and a later failed identity test, despite a recent streak of clean identity/purity results. The +20% fill result adds a quantity-consistency caveat.

methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutideselected
$0.65
75%
7
2
BPC-157
$0.55
-
0
3
CJC-1295
$1.34
-
0
4
GHK-Cu
-
-
0
5
Ipamorelin
$0.70
-
0
6
PT-141
$0.50
-
0
7
SS-31
$0.48
-
0
8
Tesamorelin
$1.30
-
0
9
Tirzepatide
$0.45
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%16 Jun 2026: 75%6 Aug 2026: 76%4 Sep 2026: 72%17 Sep 2026: 73%30 Sep 2026: 74%6 Oct 2026: 74%12 Oct 2026: 76%12 Nov 2026: current 75%75%76%75%Jun 26Nov 26
Showing Retatrutide tests only
Peptide Makers Retatrutide test history
COA-backed lab tests

About Peptide Makers test results from Finnrick

Peptide Makers is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 7 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 Peptide Makers peptides in this dataset are Retatrutide (7 tests), BPC-157 (0 tests) and CJC-1295 (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 7 recent tests.

Corrections
No corrections.
Peptide testing

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

Test my supply