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Semaglutide(GLP-1 agonist)

We've tested 302 samples of Semaglutide sourced from 50 vendors between 17 Dec 2024 and 4 Mar 2026. Purity varies from 88.19% to 100.00%, and quantity can diverge by up to +/-488% vs advertised value.

Finnrick Top 3™ - 6 Mar 2026
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
NextechLabsNextechLabs
A
Great
29.19.09.314 Jan 202523 Jan 2025
InjectifyInjectify
A
Great
49.58.410.016 May 202522 Jul 2025
Yiwu Aozuo Trading CoYiwu Aozuo Trading Co
A
Great
28.88.09.730 Dec 202530 Dec 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
UtherUther
A
Great
38.07.38.89 Oct 202529 Dec 2025
Peptide TechnologiesPeptide Technologies
A
Great
48.87.210.027 Feb 202520 Mar 2025
Skye PeptidesSkye Peptides
A
Great
98.27.28.617 Dec 202420 Mar 2025
Accelerate LabsAccelerate Labs
A
Great
37.37.17.616 May 202522 Jul 2025
Bulk Peptide SupplyBulk Peptide Supply
A
Great
58.57.110.029 Jun 20259 Jan 2026
Planet PeptidePlanet Peptide
A
Great
87.56.99.017 Dec 20246 May 2025
Tianjin Ruiwang New Material Technology CoTianjin Ruiwang New Material Technology Co
A
Great
47.76.88.421 Oct 202513 Dec 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
Atomik LabzAtomik Labz
A
Great
47.76.58.26 May 20256 May 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
Simple PeptideSimple Peptide
A
Great
47.46.39.525 Apr 20256 May 2025
Forever Young PharmacyForever Young Pharmacy
A
Great
57.46.38.517 Dec 202419 Feb 2025
Liberty PeptidesLiberty Peptides
A
Great
57.46.28.028 Mar 202524 Oct 2025
HK PeptidesHK Peptides
A
Great
87.16.28.09 Jul 202526 Jan 2026
Peptide GurusPeptide Gurus
B
Good
66.55.97.316 Mar 202525 Mar 2025
Suaway Lab ResearchSuaway Lab Research
B
Good
56.55.87.428 Mar 202522 Jul 2025
Royal PeptidesRoyal Peptides
B
Good
77.05.88.916 Mar 20253 Aug 2025
Eternal PeptidesEternal Peptides
B
Good
46.45.77.57 May 202521 May 2025
Nuscience PeptidesNuscience Peptides
B
Good
147.85.610.014 Apr 202510 Sep 2025
Peptide-SPeptide-S
B
Good
57.25.69.016 Jul 202515 Jan 2026
SRY LabsSRY Labs
B
Good
47.35.59.629 Jun 202515 Jan 2026
Alpha-GenAlpha-Gen
B
Good
56.85.47.624 Apr 202521 May 2025
Bfflist AMOBfflist AMO
B
Good
37.75.39.029 Jun 202525 Nov 2025
Platinum CryoPlatinum Cryo
B
Good
66.15.28.022 Apr 20257 May 2025
Precision Peptide CoPrecision Peptide Co
B
Good
46.85.09.07 May 202516 May 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
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
Elite Research USAElite Research USA
C
Okay
96.34.58.025 Apr 20255 Aug 2025
Zhejiang Yichenkang BiotechnologyZhejiang Yichenkang Biotechnology
C
Okay
66.24.58.014 Jun 20255 Aug 2025
Shenzhen Loga Tech LG LOGAShenzhen Loga Tech LG LOGA
C
Okay
47.04.38.04 Sep 202517 Dec 2025
Loti LabsLoti Labs
D
Poor
44.94.65.016 Mar 202525 Mar 2025
TydesTydes
D
Poor
94.94.45.417 Dec 202430 Apr 2025
Shanghai Sigma Audley SSAShanghai Sigma Audley SSA
D
Poor
97.43.99.529 Jun 202530 Oct 2025
Peptides For SalePeptides For Sale
D
Poor
44.63.66.027 Feb 202520 Mar 2025
ZLZ PeptideZLZ Peptide
E
Bad
85.82.57.911 Jun 202510 Feb 2026
Coastal PeptidesCoastal Peptides
E
Bad
60.80.05.028 Feb 202528 Mar 2025
OupeptideOupeptide
E
Bad
65.10.07.25 Aug 202529 Jan 2026

Most recent Semaglutide tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
LabelTestedDifferencePurityBatch IDContainerTested AtSent By
10 Feb 2026ZLZ PeptideView6.710mg7.7mg-23.0%99.80%Z121425White Label / Silver Crimp / White CapLab GPublic
29 Jan 2026OupeptideView0.010mg
⚠️ Sample does not contain Semaglutide
(no batch ID)White Label / Silver Crimp / White CapLab EPublic
26 Jan 2026HK PeptidesView6.830mg32.6mg+8.7%99.90%(no batch ID)No Label / Silver Crimp / Clear CapLab GPublic
26 Jan 2026ZLZ PeptideView5.530mg25.3mg-15.7%99.90%(no batch ID)No Label / Silver Crimp / Clear Pink CapLab GPublic
15 Jan 2026Peptide-SView6.85mg6mg+20.0%99.80%Dec 2, 2025No Label / Silver Crimp / Blue CapLab GPublic
15 Jan 2026SRY LabsView9.615mg14.2mg-5.3%99.80%SRY S15 - (A)No Label / Copper Crimp / Clear CapLab GPublic
15 Jan 2026ZLZ PeptideView6.715mg18.9mg+26.0%99.80%ZLZ S15 - (B)No Label / Black Crimp / Clear CapLab GPublic

Corrections

17 Nov 2025: Peptide Sciences
Test results for sample cjkyg7x were published from 31 Oct to 17 Nov 2025, but did not belong to Peptide Sciences: the sample was misidentified, and re-attributed to the correct vendor.
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