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Peptide testing

Ordered SS-31 from Reta-Peptide? Mail in a sample (US only) and let us test it.

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+17 more ↓
72%
Finnrick rating
#3 of 7 SS-31 vendors
3 of 4 classifiable tests passed
natural 75% · customers 4.9★ (2)
methodology · Purity focus
Finnrick analysis · SS-31

Reta-Peptide's SS-31 rating is held back by an April purity miss at 98.7%, despite identity passing across the series. The next two tests recovered, but the latest purity sits on the 99.5% cutoff and early batch documentation was thin.

methodology →
vendor intelligence report
Vendor Intelligence Report: Reta-Peptide

Corporate records and marketplace filings point away from the listed U.S. manufacturer story and toward a China-based trader model. The report maps the Retalux/@super_chem linkage, Shopify footprint, COA gaps, and crypto/wire payment rails.

27 pages6 risk factors assessed3 Jul 2026
read the report
Peptides
#
Peptide
$/MG
Rating
N
1
GHK-Cu
$0.06
94%
28
2
Tirzepatide
$0.47
87%
36
3
Retatrutide
$1.00
84%
85
4
Ipamorelin
$0.72
81%
16
5
SS-31selected
$0.66
72%
4
6
PT-141
$0.60
72%
6
7
Semaglutide
$0.50
71%
2
8
Melanotan II
$0.40
63%
5
9
Cagrilintide
$1.35
59%
4
10
BPC-157
$0.78
50%
20
11
Tesamorelin
$2.48
47%
18
12
MOTS-c
$0.57
41%
8
13
TB-500
$1.50
37%
13
14
NAD+
$0.01
31%
4
15
CJC-1295
-
31%
9
16
5-Amino-1MQ
$1.40
-
0
17
GLOW
$0.31
-
0
18
hCG
$0.00
-
0
19
HGH
$0.54
-
0
20
Kisspeptin
$0.99
-
0
21
KPV
$0.75
-
0
22
LL-37
$1.52
-
0
24
SLU-PP-332
$2.40
-
0
26
Wolverine
$1.26
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%13 Mar 2026: 100%23 Apr 2026: 76%13 May 2026: 83%12 Jun 2026: 86%29 Sep 2026: current 72%100%86%72%Mar 26Sep 26
Showing SS-31 tests only
Reta-Peptide SS-31 test history
COA-backed lab tests

About Reta-Peptide test results from Finnrick

Reta-Peptide is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 15 peptides and 258 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 Reta-Peptide peptides in this dataset are BPC-157 (20 tests), Cagrilintide (4 tests) and CJC-1295 (9 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. It also includes 1 correction related to this vendor.

Corrections
2025-09-26
Customer update
Batch identifier provided after publishing. Test score updated from 7.3 to 9.3.
Peptide testing

Ordered SS-31 from Reta-Peptide? Mail in a sample (US only) and let us test it.

Test my supply