88%
Finnrick rating
#3 of 283 ranked vendors
15 of 16 classifiable tests passed
methodology · Purity focus
Finnrick analysis

Marvel Pep's purity-focus record is strong but narrow, with Retatrutide carrying the evidence rather than a broad catalog view. Recent BTLabs/Krause results show consistent identity and 99.6–99.9% purity with fill from -12% to +9%, while earlier batch-information gaps keep some uncertainty.

methodology →
vendor intelligence report
Vendor Intelligence Report: Marvel Pep

A .cn WHOIS record ties Marvel Pep’s brand cluster to a Xiamen sole-proprietor trading firm, while a Wichita address and WoodMart cosmetics-template residue undermine the U.S.-manufacturer posture. The report also maps contact/payment rails and a high-risk Botulinum toxin listing.

17 pages5 risk factors assessed13 Jun 2026
read the report
Peptides
#
Peptide
$/MG
Rating
N
1
GHK-Cu
$0.10
91%
4
2
Retatrutide
$1.32
85%
12
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%16 Dec 2025: 76%17 Dec 2025: 81%23 Dec 2025: 82%26 Jan 2026: 84%26 Jan 2026: 85%4 Feb 2026: 85%11 Feb 2026: 86%11 Feb 2026: 86%18 Feb 2026: 87%2 Mar 2026: 88%7 Mar 2026: 88%2 Apr 2026: 89%2 Jun 2026: 90%8 Jun 2026: 90%13 Jul 2026: 90%13 Jul 2026: 88%28 Jul 2026: current 88%76%88%88%Dec 25Jul 26
Marvel Pep test history
COA-backed lab tests
DateResultTestLabPurityDosageLabelCOA
13 Jul 2026Fail
Retatrutide
lab nameView COA
13 Jul 2026Pass
GHK-Cu
lab nameView COA
8 Jun 2026Pass
Retatrutide
lab nameView COA
2 Jun 2026Pass
Retatrutide
lab nameView COA
2 Apr 2026Pass
Retatrutide
lab nameView COA
7 Mar 2026Pass
Retatrutide
lab nameView COA
2 Mar 2026Pass
GHK-Cu
lab nameView COA
18 Feb 2026Pass
Retatrutide
lab nameView COA
11 Feb 2026Pass
GHK-Cu
lab nameView COA
11 Feb 2026Pass
Retatrutide
lab nameView COA
1-10 of 16

About Marvel Pep test results from Finnrick

Marvel Pep is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 2 peptides and 16 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 Marvel Pep peptides in this dataset are 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 16 recent tests.

Corrections
No corrections.