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

We've tested 364 samples of Retatrutide sourced from 73 vendors between 17 Dec 2024 and 11 Aug 2025. Purity varies from 89.66% to 100.00%, and quantity can diverge by up to +/-109% vs advertised value.

Finnrick Top 3™ - 8 Aug 2025
Retatrutide
1
NextechLabs
A
GREAT
2
ZLZ Peptide
A
GREAT
3
Skye Peptides
B
GOOD

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Vendors

Tests
Vendor
Rating
CountAvgMinMaxOldestMost Recent
NextechLabsNextechLabs
A
Great
67.46.59.014 Jan 202520 Mar 2025
ZLZ PeptideZLZ Peptide
A
Great
77.26.28.020 Jun 20254 Aug 2025
Pure RawzPure Rawz
A
Great
48.68.19.16 May 202521 May 2025
Bfflist AMOBfflist AMO
A
Great
28.47.79.030 Jun 20259 Jul 2025
InjectifyInjectify
A
Great
38.37.78.716 May 202513 Jun 2025
Zztai PeptideZztai Peptide
A
Great
27.87.78.09 Jun 20254 Aug 2025
Xiangruida XDRXiangruida XDR
A
Great
28.27.68.820 Jun 202524 Jul 2025
Xian Yihang TechnologyXian Yihang Technology
A
Great
27.06.97.227 Jun 20253 Jul 2025
Atomik LabzAtomik Labz
A
Great
47.96.89.06 May 20256 May 2025
EHZ PeptidesEHZ Peptides
A
Great
27.26.87.520 Jun 202530 Jun 2025
OmegAminoOmegAmino
A
Great
38.26.810.020 Jun 202517 Jul 2025
PurePeptidesPurePeptides
A
Great
47.76.89.427 Feb 202520 Mar 2025
Peptide CraftersPeptide Crafters
A
Great
57.26.68.617 Dec 202420 Mar 2025
Loti LabsLoti Labs
A
Great
57.36.08.016 Mar 20256 May 2025
Nuscience PeptidesNuscience Peptides
B
Good
66.76.17.022 Apr 202521 May 2025
Skye PeptidesSkye Peptides
B
Good
97.86.09.517 Dec 20247 May 2025
Royal PeptidesRoyal Peptides
B
Good
66.75.87.516 Mar 202526 Mar 2025
Oasis PeptidesOasis Peptides
B
Good
76.85.77.914 Jan 202524 Jul 2025
Accelerate LabsAccelerate Labs
B
Good
26.66.36.916 May 202516 May 2025
Pharma Grade PeptidesPharma Grade Peptides
B
Good
26.36.36.37 May 20257 May 2025
Verified PeptidesVerified Peptides
B
Good
47.05.99.713 Feb 202519 Feb 2025
Eternal PeptidesEternal Peptides
B
Good
46.45.86.97 May 202521 May 2025
Limitless Life NootropicsLimitless Life Nootropics
B
Good
47.35.710.013 Feb 202519 Feb 2025
OupeptideOupeptide
B
Good
26.65.77.59 Jun 20253 Jul 2025
Reta-PeptideReta-Peptide
B
Good
46.55.47.820 Jun 202525 Jul 2025
Platinum CryoPlatinum Cryo
C
Okay
66.65.08.022 Apr 20257 May 2025
Shanghai Sigma Audley SSAShanghai Sigma Audley SSA
C
Okay
157.15.08.39 Jun 20254 Aug 2025
Planet PeptidePlanet Peptide
C
Okay
126.64.58.517 Dec 202421 May 2025
Biolongevity LabsBiolongevity Labs
C
Okay
106.64.48.031 Mar 202527 Jun 2025
Paramount PeptidesParamount Peptides
C
Okay
97.44.39.314 Jan 20256 May 2025
Qing Li PeptideQing Li Peptide
C
Okay
197.04.210.09 Jun 202528 Jul 2025
Kerisite Shenzhen InternationalKerisite Shenzhen International
C
Okay
35.45.26.025 Jun 20254 Aug 2025
Amino AsylumAmino Asylum
C
Okay
25.64.86.514 Feb 202519 Feb 2025
Elite Research USAElite Research USA
C
Okay
55.64.86.930 Apr 202527 Jun 2025
Qingdao Saber Technology Pharma QSTQingdao Saber Technology Pharma QST
C
Okay
35.94.87.33 Jun 202517 Jul 2025
Simple PeptideSimple Peptide
C
Okay
46.04.77.725 Apr 20256 May 2025
SRY LabsSRY Labs
C
Okay
45.94.77.820 Apr 202524 Jul 2025
Tianjin Finder Chemical TFCTianjin Finder Chemical TFC
C
Okay
25.64.46.811 Jun 20259 Jul 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
Amino AmigosAmino Amigos
C
Okay
26.74.09.414 Jan 202523 Jan 2025
HK PeptidesHK Peptides
D
Poor
106.43.98.011 Jun 20254 Aug 2025
Polaris PeptidesPolaris Peptides
D
Poor
177.63.99.017 Dec 20246 May 2025
NexaphNexaph
D
Poor
216.63.89.811 Jun 20254 Aug 2025
TydesTydes
D
Poor
95.23.87.217 Dec 202430 Apr 2025
Peptide-SPeptide-S
D
Poor
167.03.410.011 Jun 20254 Aug 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
Zhejiang Yichenkang BiotechnologyZhejiang Yichenkang Biotechnology
D
Poor
36.03.37.411 Jun 202525 Jun 2025
Peptide SciencesPeptide Sciences
E
Bad
325.72.010.017 Dec 202417 Jul 2025
Forever Young PharmacyForever Young Pharmacy
E
Bad
82.91.57.117 Dec 202431 Mar 2025
Peptide GurusPeptide Gurus
E
Bad
70.80.05.416 Mar 20253 Jul 2025
UWA Elite PeptidesUWA Elite Peptides
E
Bad
24.82.76.916 Jul 202525 Jul 2025
Amplified AminoAmplified Amino
E
Bad
44.22.27.013 Feb 202519 Feb 2025
Modern AminosModern Aminos
E
Bad
23.80.07.620 Jun 20259 Jul 2025
Regenerative ResearchRegenerative Research
X
Unrated
19.79.79.720 Jun 202520 Jun 2025
Yongkang Nuoao Trading CoYongkang Nuoao Trading Co
X
Unrated
19.09.09.025 Jul 202525 Jul 2025
Pura PeptidesPura Peptides
X
Unrated
18.38.38.324 Jul 202524 Jul 2025
Peptide PartnersPeptide Partners
X
Unrated
18.08.08.017 Jul 202517 Jul 2025
TSC Top Supplements ChinaTSC Top Supplements China
X
Unrated
17.77.77.73 Jun 20253 Jun 2025
Paradigm PeptidesParadigm Peptides
X
Unrated
17.67.67.624 Jul 202524 Jul 2025
TCITCI
X
Unrated
17.67.67.610 Jun 202510 Jun 2025
ZZQ PeptidesZZQ Peptides
X
Unrated
17.67.67.624 Jul 202524 Jul 2025
Zhang TYZhang TY
X
Unrated
17.37.37.330 Jun 202530 Jun 2025
Peptide WorldwidePeptide Worldwide
X
Unrated
17.17.17.16 May 20256 May 2025
Kits4lessKits4less
X
Unrated
17.07.07.016 Jul 202516 Jul 2025
Shanxi Qianyecao Biotech QYCShanxi Qianyecao Biotech QYC
X
Unrated
16.66.66.624 Jul 202524 Jul 2025
UtherUther
X
Unrated
16.56.56.53 Jul 20253 Jul 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
Wolverine PeptidesWolverine Peptides
X
Unrated
15.05.05.03 Jul 20253 Jul 2025
Alimo PeptideAlimo Peptide
X
Unrated
14.14.14.111 Jun 202511 Jun 2025
WllyBIOWllyBIO
X
Unrated
13.63.63.63 Jul 20253 Jul 2025

Most recent Retatrutide tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
Label
Batch
TestedDifferencePurityBatch IDContainerTested AtSent By
4 Aug 2025NexaphView9.824mg
29.9mg
31.050mg+3.7%99.84%RET2404212025-04No Label / Black Crimp / Orange Cap Lab DPublic
4 Aug 2025Peptide-SView5.010mg(no batch claim)11.430mg+14.3%99.16%Apr, 2025No Label / Silver Crimp / Yellow Cap Lab DPublic
4 Aug 2025Peptide-SView9.85mg(no batch claim)4.820mg-3.6%99.81%4484No Label / Silver Crimp / Blue CapLab EPublic
4 Aug 2025HK PeptidesView8.010mg(no batch claim)10.300mg+3.0%99.88%(no batch ID)No Label / Silver Crimp / Clear Blue CapLab EFinnrick
4 Aug 2025ZLZ PeptideView8.010mg(no batch claim)10.100mg+1.0%99.95%(no batch ID)No Label / Silver Crimp / Clear Blue CapLab EPublic
4 Aug 2025Shanghai Sigma Audley SSAView8.05mg(no batch claim)4.750mg-5.0%99.92%(no batch ID)No Label / Silver Crimp / Black CapLab EPublic
4 Aug 2025HK PeptidesView4.810mg(no batch claim)11.590mg+15.9%99.61%(no batch ID)No Label / Silver Crimp / Clear Blue CapLab DFinnrick

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.