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Ordered GHK-Cu from Reta-Peptide? Mail in a sample (US only) and let us test it for free.

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+18 more ↓
94%
Finnrick rating
#4 of 140 GHK-Cu vendors
27 of 28 classifiable tests passed
customers 4.6★ (12)
methodology · Purity focus
Finnrick analysis · GHK-Cu

Reta-Peptide's GHK-Cu profile has a recent 99.3% purity miss with -18% fill and no batch ID, interrupting a long pass streak. Subsequent tests rebounded, but inconsistent batch identifiers keep the evidence from being fully clean.

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-Cuselected
$0.06
94%
28
2
Tirzepatide
$0.47
87%
36
3
Retatrutide
$1.00
84%
85
4
Ipamorelin
$0.72
81%
16
5
SS-31
$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%16 Jul 2025: 86%4 Aug 2025: 87%4 Aug 2025: 88%4 Sep 2025: 90%25 Sep 2025: 89%3 Oct 2025: 90%7 Oct 2025: 91%23 Oct 2025: 92%27 Oct 2025: 93%27 Oct 2025: 93%4 Nov 2025: 94%25 Nov 2025: 94%25 Nov 2025: 94%26 Jan 2026: 95%11 Feb 2026: 95%20 Feb 2026: 96%20 Feb 2026: 96%4 Mar 2026: 96%23 Apr 2026: 97%28 Apr 2026: 97%5 May 2026: 97%19 May 2026: 93%27 May 2026: 93%27 May 2026: 94%2 Jun 2026: 94%13 Jul 2026: 94%20 Jul 2026: 94%15 Sep 2026: 94%29 Sep 2026: current 94%86%95%94%Jul 25Sep 26
Showing GHK-Cu tests only
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Ordered GHK-Cu from Reta-Peptide? Mail in a sample (US only) and let us test it for free.

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Reta-Peptide GHK-Cu test history
COA-backed lab tests
1-10 of 28

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.
Free peptide testing

Ordered GHK-Cu from Reta-Peptide? Mail in a sample (US only) and let us test it for free.

Test my supply