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Semaglutide(GLP-1 antagonist)

We've tested 209 samples of Semaglutide sourced from 38 vendors between 17 Dec 2024 and 3 Jul 2025. Purity varies from 88.19% to 100.00%, and quantity can diverge by up to +/-488% vs advertised value.

Finnrick Top 3™ - 4 Jul 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
137.76.39.817 Dec 20245 May 2025
NextechLabsNextechLabs
A
Great
29.19.09.314 Jan 202523 Jan 2025
InjectifyInjectify
A
Great
39.48.410.016 May 202514 Jun 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
38.37.79.014 Jun 202529 Jun 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
27.17.17.216 May 202516 May 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
Peptide GurusPeptide Gurus
B
Good
66.45.97.316 Mar 202525 Mar 2025
Royal PeptidesRoyal Peptides
B
Good
66.75.87.616 Mar 202525 Mar 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
46.76.17.428 Mar 202522 Apr 2025
Eternal PeptidesEternal Peptides
B
Good
46.45.77.57 May 202521 May 2025
Alpha-GenAlpha-Gen
B
Good
56.85.47.624 Apr 202521 May 2025
Precision Peptide CoPrecision Peptide Co
B
Good
46.85.09.07 May 202516 May 2025
Polaris PeptidesPolaris Peptides
C
Okay
136.64.78.717 Dec 20246 May 2025
Paramount PeptidesParamount Peptides
C
Okay
96.34.68.914 Jan 20256 May 2025
Elite Research USAElite Research USA
C
Okay
76.74.58.025 Apr 202529 Jun 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
NexaphNexaph
C
Okay
26.04.57.511 Jun 202511 Jun 2025
Zhejiang Yichenkang BiotechnologyZhejiang Yichenkang Biotechnology
C
Okay
35.74.57.914 Jun 202529 Jun 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

Most recent Semaglutide tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
LabelTestedDifferencePurityBatch IDContainerTested AtSent By
29 Jun 2025Zhejiang Yichenkang BiotechnologyView4.55mg4.360mg-12.8%99.28%(no batch ID)(no data)Lab EFinnrick
29 Jun 2025Zhejiang Yichenkang BiotechnologyView4.75mg4.390mg-12.2%99.37%(no batch ID)(no data)Lab EFinnrick
29 Jun 2025DeuschemView7.75mg4.520mg-9.6%99.55%PP06115White Label / Silver Crimp / Blue CapLab EFinnrick
29 Jun 2025Elite Research USAView6.95mg5.070mg+1.4%99.45%(no batch ID)Black Label / Silver Crimp / Clear Blue CapLab EFinnrick
27 Jun 2025DeuschemView8.15mg4.597mg-8.1%99.56%PP06115White Label / Silver Crimp / Blue CapLab AFinnrick
27 Jun 2025Elite Research USAView4.95mg5.971mg+19.4%99.82%(no batch ID)Black Label / Silver Crimp / Clear Blue CapLab AFinnrick
14 Jun 2025InjectifyView8.45mg5.470mg+9.4%99.78%PE2401-629Black Label / Silver Crimp / Blue CapLab FFinnrick

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