Finnrick - Ensuring a Safer and More Transparent Supply Chain

Retatrutide(GLP-1, GIP, and GCGR antagonist)

We've tested 229 samples of Retatrutide sourced from 53 vendors between 17 Dec 2024 and 11 Jun 2025. Purity varies from 89.66% to 100.00%, and quantity can diverge by up to +/-100% vs advertised value.

Finnrick Top 3™ - 13 Jun 2025
Retatrutide
1
NextechLabs
A
GREAT
2
Oasis Peptides
A
GREAT
3
Skye Peptides
B
GOOD

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Vendors

Tests
Vendor
Rating
CountAvgMinMaxOldestMost Recent
InjectifyInjectify
A
Great
28.78.78.716 May 202516 May 2025
Pure RawzPure Rawz
A
Great
48.68.19.16 May 202521 May 2025
Limitless Life NootropicsLimitless Life Nootropics
A
Great
48.46.410.013 Feb 202519 Feb 2025
Atomik LabzAtomik Labz
A
Great
47.96.89.06 May 20256 May 2025
PurePeptidesPurePeptides
A
Great
47.76.89.427 Feb 202520 Mar 2025
NextechLabsNextechLabs
A
Great
67.46.59.014 Jan 202520 Mar 2025
Oasis PeptidesOasis Peptides
A
Great
67.46.38.014 Jan 202520 Mar 2025
Loti LabsLoti Labs
A
Great
57.36.08.016 Mar 20256 May 2025
Peptide CraftersPeptide Crafters
A
Great
57.26.68.617 Dec 202420 Mar 2025
Skye PeptidesSkye Peptides
B
Good
97.86.09.517 Dec 20247 May 2025
Verified PeptidesVerified Peptides
B
Good
47.05.99.713 Feb 202519 Feb 2025
Nuscience PeptidesNuscience Peptides
B
Good
66.76.17.022 Apr 202521 May 2025
Royal PeptidesRoyal Peptides
B
Good
66.75.87.516 Mar 202526 Mar 2025
Accelerate LabsAccelerate Labs
B
Good
26.66.36.916 May 202516 May 2025
Eternal PeptidesEternal Peptides
B
Good
46.45.86.97 May 202521 May 2025
Pharma Grade PeptidesPharma Grade Peptides
B
Good
26.36.36.37 May 20257 May 2025
Paramount PeptidesParamount Peptides
C
Okay
97.44.39.314 Jan 20256 May 2025
Amino AmigosAmino Amigos
C
Okay
26.74.09.414 Jan 202523 Jan 2025
Platinum CryoPlatinum Cryo
C
Okay
66.65.08.022 Apr 20257 May 2025
Planet PeptidePlanet Peptide
C
Okay
126.64.58.517 Dec 202421 May 2025
Biolongevity LabsBiolongevity Labs
C
Okay
76.44.48.031 Mar 202516 May 2025
Qingdao Saber Technology Pharma QSTQingdao Saber Technology Pharma QST
C
Okay
26.14.87.33 Jun 20259 Jun 2025
Simple PeptideSimple Peptide
C
Okay
46.04.77.725 Apr 20256 May 2025
Amplified AminoAmplified Amino
C
Okay
45.64.47.013 Feb 202519 Feb 2025
Amino AsylumAmino Asylum
C
Okay
25.64.86.514 Feb 202519 Feb 2025
Suaway Lab ResearchSuaway Lab Research
C
Okay
55.54.36.331 Mar 202516 May 2025
Liberty PeptidesLiberty Peptides
C
Okay
35.24.26.131 Mar 20257 May 2025
Polaris PeptidesPolaris Peptides
D
Poor
177.63.99.017 Dec 20246 May 2025
Alpha-GenAlpha-Gen
D
Poor
56.24.07.824 Apr 202521 May 2025
Coastal PeptidesCoastal Peptides
D
Poor
55.93.87.927 Feb 202520 Mar 2025
TydesTydes
D
Poor
95.23.87.217 Dec 202430 Apr 2025
Elite Research USAElite Research USA
D
Poor
34.74.54.930 Apr 202511 Jun 2025
Qing Li PeptideQing Li Peptide
D
Poor
34.64.25.19 Jun 202511 Jun 2025
Peptide SciencesPeptide Sciences
E
Bad
265.52.010.017 Dec 20247 May 2025
Peptide-SPeptide-S
E
Bad
23.83.73.911 Jun 202511 Jun 2025
Forever Young PharmacyForever Young Pharmacy
E
Bad
82.91.57.117 Dec 202431 Mar 2025
Peptide GurusPeptide Gurus
E
Bad
60.00.00.016 Mar 202527 Mar 2025
TSC Top Supplements ChinaTSC Top Supplements China
X
Unrated
17.77.77.73 Jun 20253 Jun 2025
Zztai PeptideZztai Peptide
X
Unrated
17.77.77.79 Jun 20259 Jun 2025
Peptide WorldwidePeptide Worldwide
X
Unrated
17.17.17.16 May 20256 May 2025
Shaanxi Dideu MedichemShaanxi Dideu Medichem
X
Unrated
16.46.46.43 Jun 20253 Jun 2025
Nanjing Xiyuxun Technology XYXNanjing Xiyuxun Technology XYX
X
Unrated
15.75.75.720 May 202520 May 2025
SRY LabsSRY Labs
X
Unrated
14.74.74.720 Apr 202520 Apr 2025
NexaphNexaph
X
Unrated
13.83.83.811 Jun 202511 Jun 2025
Zhejiang Yichenkang BiotechnologyZhejiang Yichenkang Biotechnology
X
Unrated
13.33.33.311 Jun 202511 Jun 2025

Most recent Retatrutide tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
Label
Batch
TestedDifferencePurityBatch IDContainerTested AtSent By
11 Jun 2025Peptide-SView3.95mg(no batch claim)4.080mg-18.4%99.33%(no batch ID)No Label / Silver Crimp / Blue CapLab EPublic
11 Jun 2025Zhejiang Yichenkang BiotechnologyView3.35mg(no batch claim)4.010mg-19.8%99.16%(no batch ID)(no data)Lab EFinnrick
11 Jun 2025Peptide-SView3.710mg(no batch claim)14.800mg+48.0%99.54%(no batch ID)No Label / Silver Crimp / Yellow CapLab EPublic
11 Jun 2025Qing Li PeptideView4.220mg(no batch claim)33.600mg+68.0%99.81%(no batch ID)No Label / Gold Crimp / Clear CapLab EPublic
11 Jun 2025Elite Research USAView4.516mg(no batch claim)12.300mg-23.1%99.70%(no batch ID)Black Label / Copper Crimp / Clear CapLab FPublic
11 Jun 2025NexaphView3.86mg
6.5mg
5.820mg-10.7%97.34%RET0604302025-04No Label / Gold Crimp / Black CapLab EFinnrick
9 Jun 2025Zztai PeptideView7.720mg(no batch claim)20.100mg+0.5%99.77%(no batch ID)No Label / Gold Crimp / Clear CapLab EPublic

Corrections

15 Apr 2025: Polaris Peptides
Lab B test 19 Feb 2025: updated quantity following the identification of a clerical error, value was erroneously listed as 6.25mg. Lab issued an updated test certificate on 7 Apr 2025.
15 Apr 2025: Limitless Life Nootropics
Lab B test 19 Feb 2025: updated quantity following the identification of a clerical error, value was erroneously listed as 9.27mg. Lab issued an updated test certificate on 7 Apr 2025.
6 Apr 2025: Forever Young Pharmacy
Lab A test 14 Feb 2025: updated compound identification, removed purity and quantity values. Error in analysis by lab, compound was incorrectly identified as Retatrutide. Lab issued an updated test certificate.
6 Apr 2025: Peptide Sciences
Lab A test 14 Feb 2025: updated compound identification, removed purity and quantity values. Error in analysis by Lab, compound was incorrectly identified as Retatrutide. Lab issued an updated test certificate.