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Semaglutide(GLP-1 antagonist)

We've tested 249 samples of Semaglutide sourced from 44 vendors between 17 Dec 2024 and 21 Aug 2025. Purity varies from 88.19% to 100.00%, and quantity can diverge by up to +/-488% vs advertised value.

Finnrick Top 3™ - 29 Aug 2025
Semaglutide
1
Peptide Crafters
A
GREAT
2
Astro Peptides
A
GREAT
3
Skye Peptides
A
GREAT

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Vendors

Tests
Vendor
Rating
CountAvgMinMaxOldestMost Recent
Skye PeptidesSkye Peptides
A
Great
98.27.28.617 Dec 202420 Mar 2025
Planet PeptidePlanet Peptide
A
Great
87.56.99.017 Dec 20246 May 2025
Astro PeptidesAstro Peptides
A
Great
78.36.79.722 Apr 20255 May 2025
Amino AmigosAmino Amigos
A
Great
77.76.59.814 Jan 202520 Mar 2025
Peptide CraftersPeptide Crafters
A
Great
108.36.49.017 Dec 202420 Mar 2025
Peptide SciencesPeptide Sciences
A
Great
147.76.39.817 Dec 202422 Jul 2025
NextechLabsNextechLabs
A
Great
29.19.09.314 Jan 202523 Jan 2025
InjectifyInjectify
A
Great
49.58.410.016 May 202522 Jul 2025
Verified PeptidesVerified Peptides
A
Great
48.37.98.913 Feb 202519 Feb 2025
Pure RawzPure Rawz
A
Great
48.47.99.06 May 202521 May 2025
DeuschemDeuschem
A
Great
48.27.79.014 Jun 20255 Aug 2025
Amino AsylumAmino Asylum
A
Great
27.87.68.014 Feb 202519 Feb 2025
Peptide TechnologiesPeptide Technologies
A
Great
48.87.210.027 Feb 202520 Mar 2025
Accelerate LabsAccelerate Labs
A
Great
37.37.17.616 May 202522 Jul 2025
Liberty PeptidesLiberty Peptides
A
Great
47.76.68.028 Mar 20255 May 2025
Atomik LabzAtomik Labz
A
Great
47.76.58.26 May 20256 May 2025
Forever Young PharmacyForever Young Pharmacy
A
Great
57.46.38.517 Dec 202419 Feb 2025
Simple PeptideSimple Peptide
A
Great
47.46.39.525 Apr 20256 May 2025
HK PeptidesHK Peptides
A
Great
37.06.28.09 Jul 20255 Aug 2025
Peptide GurusPeptide Gurus
B
Good
66.45.97.316 Mar 202525 Mar 2025
Royal PeptidesRoyal Peptides
B
Good
77.05.88.916 Mar 20253 Aug 2025
Nuscience PeptidesNuscience Peptides
B
Good
127.85.610.014 Apr 202516 May 2025
Platinum CryoPlatinum Cryo
B
Good
66.15.28.022 Apr 20257 May 2025
Suaway Lab ResearchSuaway Lab Research
B
Good
56.55.87.428 Mar 202522 Jul 2025
Eternal PeptidesEternal Peptides
B
Good
46.45.77.57 May 202521 May 2025
Peptide-SPeptide-S
B
Good
47.35.69.016 Jul 202524 Jul 2025
Alpha-GenAlpha-Gen
B
Good
56.85.47.624 Apr 202521 May 2025
Bfflist AMOBfflist AMO
B
Good
27.15.39.029 Jun 20253 Jul 2025
Precision Peptide CoPrecision Peptide Co
B
Good
46.85.09.07 May 202516 May 2025
Polaris PeptidesPolaris Peptides
C
Okay
166.94.78.717 Dec 202412 Aug 2025
Paramount PeptidesParamount Peptides
C
Okay
96.34.68.914 Jan 20256 May 2025
NexaphNexaph
C
Okay
146.24.57.511 Jun 202522 Jul 2025
Zhejiang Yichenkang BiotechnologyZhejiang Yichenkang Biotechnology
C
Okay
66.24.58.014 Jun 20255 Aug 2025
Elite Research USAElite Research USA
C
Okay
96.34.58.025 Apr 20255 Aug 2025
SRY LabsSRY Labs
C
Okay
25.85.56.029 Jun 20259 Jul 2025
Pharma Grade PeptidesPharma Grade Peptides
C
Okay
25.15.15.27 May 20257 May 2025
Amplified AminoAmplified Amino
C
Okay
45.24.85.513 Feb 202519 Feb 2025
TydesTydes
D
Poor
94.94.45.417 Dec 202430 Apr 2025
Loti LabsLoti Labs
D
Poor
44.94.65.016 Mar 202525 Mar 2025
Peptides For SalePeptides For Sale
D
Poor
44.63.66.027 Feb 202520 Mar 2025
Coastal PeptidesCoastal Peptides
E
Bad
60.80.05.028 Feb 202528 Mar 2025
Oasis PeptidesOasis Peptides
E
Bad
43.52.94.314 Jan 202513 Feb 2025
ZLZ PeptideZLZ Peptide
E
Bad
23.32.54.011 Jun 202529 Jun 2025
Shanghai Sigma Audley SSAShanghai Sigma Audley SSA
X
Unrated
16.06.06.029 Jun 202529 Jun 2025

Most recent Semaglutide tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
Label
Batch
TestedDifferencePurityBatch IDContainerTested AtSent By
12 Aug 2025Polaris PeptidesView7.910mg
11.3mg
11.910mg+5.4%99.52%POL-S10-10Black Label / Silver Crimp / Clear Green CapLab AFinnrick
12 Aug 2025Polaris PeptidesView8.210mg
11.3mg
11.310mg+0.1%99.58%POL-S10-10Black Label / Silver Crimp / Clear Green CapLab AFinnrick
11 Aug 2025Polaris PeptidesView7.310mg
11.3mg
10.100mg-10.7%99.93%POL-S10-10Black Label / Silver Crimp / Clear Green CapLab EFinnrick
5 Aug 2025Zhejiang Yichenkang BiotechnologyView4.65mg(no batch claim)4.480mg-10.4%99.11%(no batch ID)(no data)Lab DFinnrick
5 Aug 2025Elite Research USAView4.65mg(no batch claim)5.540mg+10.8%99.15%(no batch ID)Black Label / Silver Crimp / Clear Blue CapLab DFinnrick
5 Aug 2025HK PeptidesView6.210mg(no batch claim)10.560mg+5.6%99.20%(no batch ID)No Label / Silver Crimp / White CapLab DFinnrick
5 Aug 2025DeuschemView8.05mg(no batch claim)4.690mg-6.2%99.21%PP06115White Label / Silver Crimp / Blue CapLab DFinnrick

Corrections

10 Mar 2025: Peptide Crafters
Lab C tests 10 Mar 2025: error for Batch Qty on test result SPL-0511-S01, corrected with new result from Lab