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PepIndex

Index

Research peptide vendors ranked on verified COA evidence, 2026

Ranked 0–100 on published, sourced evidence by an independent index of research-peptide vendors, where no vendor can pay for a rank. Every score ships with its coverage figure and links to the documents behind it.

The highest-scoring research peptide vendor in this index is Origin Labs, at 96.9 of 100 on 25 third-party certificates signed by ILS Laboratories. Below is every one of the 57vendors indexed, ranked on the same published rubric — the certificates it publishes, the laboratory that signed them, the gap between labelled and assayed mass, price against the peer median, and business transparency. No vendor can pay for a position, and every score links to the documents behind it.

Latest data report: Peptide COA report, October 2026: what changed in a month (1 Oct 2026). A month on from the September certificate report: what the index added, whether purity and label accuracy moved, which laboratories gained ground, and what a reader should check.

57 of 57 vendors

Rank 01

Origin Labs

ILS Laboratories · 25 certificates

Extensively documented100%

Rank 02

Next Gen Peptides

ILS Laboratories · 114 certificates

Extensively documented97%

Rank 03

Amino Club

ILS Laboratories · 23 certificates

Extensively documented98%
  1. 1Origin LabsILS Laboratories · 25 certificatesVerified labPublic COAMS identityBacterial endotoxinsSterilityHeavy metals57%Price idxExtensively documented100%Visit
  2. 2Next Gen PeptidesILS Laboratories · 114 certificatesVerified labPublic COABacterial endotoxinsSterilityHeavy metals60%Price idxExtensively documented97%Visit
  3. 3Amino ClubILS Laboratories · 23 certificatesVerified labCOAMS identityBacterial endotoxinsSterilityHeavy metalsTrustpilot 4.6★75%Price idxExtensively documented98%Visit
  4. 4Ascend ScienceKovera Labs and/or ILS Labs · 29 certificatesVerified labPublic COAMS identityBacterial endotoxinsSterilityHeavy metals88%Price idxExtensively documented94%Visit
  5. 5PeptidePlugsFreedomDiagnostics · 70 certificatesPublic COAMS identityBacterial endotoxinsHeavy metals83%Price idxExtensively documented94%Visit
  6. 6Hydro Research PeptidesILS Laboratories · 32 certificatesVerified labPublic COABacterial endotoxinsSterilityHeavy metalsFinnrick ?% pass73%Price idxWell documented89%Visit
  7. 7One AminosUnited Laboratories · 27 certificatesPublic COAMS identityBacterial endotoxinsSterilityHeavy metals96%Price idxWell documented89%Visit
  8. 8Stealth Research LabsBioviridian Inc. · 10 certificatesPublic COA100%Price idxWell documented91%Visit
  9. 9Modern AminosVanguard Laboratory · 30 certificatesVerified labAccount COAMS identityBacterial endotoxinsSterilityHeavy metalsFinnrick 80% pass99%Price idxWell documented97%Visit
  10. 10Bench Grade PeptidesAV Analytics · 53 certificatesPublic COAMS identityBacterial endotoxins100%Price idxWell documented89%Visit
  11. 11Simple PeptideFreedom Diagnostics Testing · 30 certificatesPublic COAMS identityBacterial endotoxinsFinnrick 41% pass100%Price idxWell documented92%Visit
  12. 12NeuroLabs ResearchKovera Labs · 14 certificatesPublic COATrustpilot 4.3★109%Price idxWell documented91%Visit
  13. 13Ascension PeptidesKovera Labs · 33 certificatesPublic COAMS identity113%Price idxWell documented89%Visit
  14. 14Transition BiotechKovera Labs · 7 certificatesPublic COA83%Price idxWell documented91%Visit
  15. 15Koi PeptidesPeptology Labs · 8 certificatesCOAMS identityTrustpilot 3.9★100%Price idxWell documented92%Visit
  16. 16Prime PeptidesPass Analytical · 9 certificatesVerified labPublic COAEnforcement actionMS identityBacterial endotoxinsFinnrick 37% pass100%Price idxWell documented96%Visit
  17. 17CuroBTLabs · 17 certificatesVerified labPublic COABacterial endotoxins147%Price idxWell documented97%Visit
  18. 18Protide HealthHg Pass Fentanyl No Fentanyl Detected Analytical · 3 certificatesCOAMS identityBacterial endotoxinsHeavy metals122%Price idxWell documented92%Visit
  19. 19Evo Labs ResearchKovera Labs · 3 certificatesPublic COA95%Price idxWell documented87%Visit
  20. 20NLNorthline LabsILS Laboratories · 33 certificatesVerified labPublic COAMS identityBacterial endotoxinsTrustpilot 4.3★152%Price idxWell documented95%Visit
  21. 21GSGood Science BioVanguard · 0 certificatesPublic COATrustpilot 3.2★83%Price idxWell documented71%Visit
  22. 22EPEternal PeptidesLab named on certificates · 0 certificatesPublic COA71%Price idxPartly documented63%Visit
  23. 23GPGenX PeptidesLab named on certificates · 0 certificatesPublic COA105%Price idxPartly documented69%Visit
  24. 24TRTrue Research LabsTrue Research Labs · 0 certificatesPublic COA100%Price idxPartly documented68%Visit
  25. 25EPEvolve PeptidesLab named on certificates · 0 certificatesPublic COA107%Price idxPartly documented68%Visit
  26. 26LPLicensed PeptidesVanguard Laboratory · 15 certificatesPublic COA161%Price idxPartly documented87%Visit
  27. 27MHMile High CompoundsLaboratory A · 12 certificatesPublic COAEnforcement actionBacterial endotoxinsSterilityHeavy metalsResidual solvents100%Price idxPartly documented91%Visit
  28. 28BPBiotech PeptidesLipotec S.A · 0 certificatesPublic COA110%Price idxPartly documented60%Visit
  29. 29VDVial Drop LabsKMD Analytical (KMD Group LLC) · 22 certificatesPublic COABacterial endotoxinsSterilityResidual solvents—Price idxPartly documented74%Visit
  30. 30IPImproved PeptidesPrincipal Chemist · 6 certificatesPublic COAMS identityBacterial endotoxinsHeavy metals140%Price idxPartly documented87%Visit
  31. 31BLBioLongevity LabsLab named on certificates · 0 certificatesPublic COA148%Price idxPartly documented72%Visit
  32. 32EPExtreme PeptidesRichard Sylvester MD · 4 certificatesPublic COAMS identity136%Price idxPartly documented80%Visit
  33. 33VLVertex LabsFreedom Diagnostics Testing · 21 certificatesPublic COAMS identity156%Price idxPartly documented72%Visit
  34. 34PPeptimeFreedom Diagnostics Testing · 4 certificatesPublic COAMS identity—Price idxPartly documented57%Visit
  35. 35PPParamount PeptidesLab named on certificates · 0 certificatesPublic COA—Price idxPartly documented53%Visit
  36. 36SCSwiss ChemsJanoshik · 0 certificatesVerified labPublic COAEnforcement action—Price idxPartly documented58%Visit
  37. 37DADisguised AlphaLab named on certificates · 0 certificatesPublic COA—Price idxPartly documented48%Visit
  38. 38STSports Technology LabsNatural Health Product Research Group (NRG) at BCIT · 0 certificatesCOA174%Price idxPartly documented71%Visit
  39. 39LLLoti LabsLab named on certificates · 0 certificatesPublic COA—Price idxThinly documented46%Visit
  40. 40APAspire PeptidesLab named on certificates · 0 certificatesPublic COA—Price idxThinly documented41%Visit
  41. 41XPXcel PeptidesLab named on certificates · 0 certificatesPublic COAEnforcement action—Price idxThinly documented45%Visit
  42. 42RCReceptor ChemLab named on certificates · 0 certificatesPublic COA—Price idxThinly documented44%Visit
  43. 43BSBlue Sky PeptideLab named on certificates · 0 certificatesPublic COA—Price idxThinly documented34%Visit
  44. 44APApollo Peptide SciencesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented34%Visit
  45. 45EPEnhanced PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented32%Visit
  46. 46AAAmino AsylumLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented31%Visit
  47. 47LLLimitless Life NootropicsLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented28%Visit
  48. 48PLPeptide LabsLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented31%Visit
  49. 49CPCore PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented27%Visit
  50. 50PPPure Peptide LabsLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented27%Visit
  51. 51PCPeptide CraftersLab named on certificates · 0 certificatesAccount COA—Price idxThinly documented25%Visit
  52. 52EPElite PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented25%Visit
  53. 53NPNuScience PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented28%Visit
  54. 54GPGL PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented27%Visit
  55. 55DPDirect PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented26%Visit
  56. 56APApex PeptidesLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented23%Visit
  57. 57NNEXAPHLab named on certificates · 0 certificatesNo public COA—Price idxThinly documented25%Visit

Scores are computed from stored data points, not entered by hand — rubric v1.11.0. Methodology →

How every vendor on this board is ranked

Each vendor is scored 0–100 on sixweighted criteria — testing transparency, documentation depth, price and value, track record, business transparency and commercial clarity — computed from stored data points rather than assigned. A data point is a fact with a source URL and a capture date; an unsourced one earns nothing but still counts against the denominator, so leaving a source out can never raise a score. Partner status cannot reach the scoring function at all: the input type forbids the field, so the code will not compile if it is passed. The rubric is published in full.

What a score and its coverage figure mean

The score is what the evidence supports; the coverage figure beside it is how much of the rubric that evidence actually reaches. A vendor at 85 on 95% coverage has been measured on nearly everything the rubric asks and done well; a vendor at 85 on 60% coverage has done well on what could be measured and is unknown on the rest. Read the two together. A vendor can be perfectly good and score low simply by publishing little.

Check any certificate against the laboratory yourself

The strongest evidence on this board is a certificate you can pull from the laboratory that signed it, rather than from the vendor’s copy. These laboratories run a public lookup. Each certificate page here names the identifier the lookup wants.

Looking for the short version? The top ten with a writeup for each is the same ranking with the reasoning spelled out, and answers the questions buyers actually ask.