Independent education resourceInformation here does not replace care from a qualified health professional.
Peptide Therapy GuideClear peptide education

Educational guide

COA - EZ Peptides

Certificates of Analysis (COAs) Below is a list of lab test results for each of our research peptides. Each COA is verified by an independent third-party lab to ensure purity and accuracy. Date Tested: 07 May 2026 Purity: 99.835% Date Tested: 24 Mar 2026 Date

Written by Peptide Therapy Guide Editorial Team
For education only

This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.

Certificates of Analysis (COAs)

Below is a list of lab test results for each of our research peptides. Each COA is verified by an independent third-party lab to ensure purity and accuracy.

Date Tested: 07 May 2026

Purity: 99.835%

Date Tested: 24 Mar 2026

Date Tested: 02 Jun 2026

Purity: 99.405%; 99.468%.

Purity: 99.861%; 99.915%; 99.881%.

Date Tested: 07 Apr 2026

Purity: 99.909%; 99.879%; 99.919%.

Purity: 99.968%; 99.928%; 99.924%

Date Tested: 02 Jan 2026

Purity: 99.816%; 99.881%; 99.855%.

Date Tested: 23 Jun 2026

Purity: 99.946%; 99.947%; 99.938%.

Date Tested: 19 Feb 2026

Purity: 99.503%; 99.445%; 99.055%.

Date Tested: 29 Nov 2025

Date Tested: 10 Feb 2026

Purity: 99.674%; 99.632%.

Date Tested: 08 Jun 2026

Purity: 99.651%; 99.815%; 99.570%.

Date Tested: 28 May 2026

Purity: 99.185%; 99.219%; 99.241%; 99.215%.

Purity: 99.905%; 99.891%; 99.917 %.

Date Tested: 17 Apr 2026

Purity: 99.624%; 99.727%; 99.691%.

Purity: 99.285%; 99.266%; 99.277%.

Purity: 99.698%; 99.810%; 99.803%.

Date Tested: 20 May 2026

Purity: 99.772%; 99.731%; 99.715%.

Purity: 99.885%; 99.916%; 99.833%.

Purity: 99.447%; 99.440%.

Date Tested: 17 Feb 2026

Purity: 99.876%; 99.880%; 99.797 %.

Date Tested: 06 May 2026

Purity: 99.845%; 99.862%; 99.844%.

Purity: 99.827%; 99.823%; 99.789%.

Date Tested: 23 Feb 2026

Purity: 99.802%; 99.812%; 99.822%.

Date Tested: 18 Mar 2026

Purity: 99.818%; 99.801%; 99.833%.

Purity: 97.971%; 97.957%; 97.877%.

Date Tested: 12 Jun 2026

Purity: 99.929%; 99.945%; 99.933%.

Purity: 99.015%; 99.014%; 99.017%.

Date Tested: 09 Feb 2026

Purity: 99.654%; 99.654%; 99.627 %.

Purity: 99.071%; 99.044%; 99.096 %.

Purity: 99.857%; 99.842%; 99.815%.

Purity: 99.181%; 99.175%; 99.188%.

Purity: 99.737%; 99.807 %; 99.794%.

Purity: 99.885%; 99.851%; 99.870%.

Purity: 99.812%; 99.740%; 99.762%.

Date Tested: 14 May 2026

Purity: 99.767%; 99.535%; 99.757 %; 99.646%.

Purity: 99.626%; 99.747%; 99.827 %.

Date Tested: 30 Mar 2026

Purity: 99.939%; 99.909%.

Purity: 99.105%; 99.136%; 99.329%.

Purity: 99.589%; 99.621%; 99.624%.

Purity: 99.912%; 99.929%; 99.919%.

Purity: 99.375%; 99.448%; 99.442%.

Purity: 99.699%; 99.661%.

Purity: 99.345%; 99.215%; 99.246%.

Date Tested: 03 Mar 2026

Purity: 99.920%; 99.945%; 99.914%.

Retatrutide 48mg

Date Tested: 19 AUG 2025 Purity: 99.968%; 99.928%; 99.924%

SS-31 30mg

Date Tested: 12 AUG 2025 Purity: 99.891%; 99.914%; 99.901%

Tesamorelin/Ipamorelin Blend 10mg/3mg

Date Tested: 19 AUG 2025 Purity: 99.02%

Thymosin Alpha-1 5mg

Date Tested: 23 JUL 2025 Purity: 99.354%; 99.224%; 99.568%

TB4 10mg

Date Tested: 14 Jul 2025 Purity: 99.197%; 99.577%; 99.420%

MOTS-C 10mg

Date Tested: 02 Aug 2025 Purity: 99.047%; 99.248%; 99.439%

Melanotan II 10mg

Date Tested: 19 Aug 2025 Purity: 99.904%; 99.931%; 99.925%

LIPO-C with B12

Date Tested: 21 Aug 2025 Purity: 99.02%

DSIP 5mg

Date Tested: 04 Jul 2025 Purity: 99.736%; 99.766%; 99.751%

CJC no DAC / Ipamorelin Blend 5mg/5mg

Date Tested: 04 Jul 2025 Purity: 99.02%

BPC-157 / TB4 Blend 5mg/5mg

Date Tested: 19 Aug 2025 Purity: 99.02%

Bacteriostatic Water 10mL

Date Tested: 29 Jun 2025 Purity: 99.02%

Sermorelin 5mg

Date Tested: 23 Jul 2025 Purity: 99.084%; 99.165%; 99.205%

Tesamorelin 10mg

Date Tested: 04 Sep 2025 Purity: 99.423%; 99.440%; 99.332%

KPV 10mg

Date Tested: 19 Aug 2025 Purity: 99.781%; 99.773%; 99.755%

Cagrilintide 5mg

Date Tested: 20 Jun 2025 Purity: 99.007%; 99.594%; 99.522%

Semaglutide 10mg

Date Tested: 23 Jun 2025 Purity: 99.641%; 99.493%; 99.487%

Semaglutide 5mg

Date Tested: 23 Jun 2025 Purity: 99.406%; 99.559%; 99.336%

Retatrutide 24mg

Date Tested: 29 Aug 2025 Purity: 99.900%; 99.757%; 99.746%

Retatrutide 12mg

Date Tested: 04 Sep 2025 Purity: 99.717%; 99.658%; 99.645%

Retatrutide 6mg

Date Tested: 04 Sep 2025 Purity: 99.331%; 99.463%; 99.738%

Tirzepatide 60mg

Date Tested: 04 Sep 2025 Purity: 99.921%; 99.954%; 99.936%

Tirzepatide 30mg

Date Tested: 29 Aug 2025 Purity: 99.929%; 99.932%; 99.944%; 99.898%

Tirzepatide 20mg

Date Tested: 19 Aug 2025 Purity: 99.934%; 99.947%; 99.914%

Tirzepatide 15mg

Date Tested: 19 Aug 2025 Purity: 99.912%; 99.878%; 99.917%

Tirzepatide 10mg

Date Tested: 29 Aug 2025 Purity: 99.8207%; 99.866%; 99.881%; 99.846%

Selank 10mg

Date Tested: 20 Aug 2025 Purity: 99.767%; 99.715%; 99.776%

Semax 10mg

Date Tested: 19 Aug 2025 Purity: 99.790%; 99.782%; 99.786%

PT-141 10mg

Date Tested: 04 Sep 2025 Purity: 99.871%; 99.863%; 99.914%

NAD+ 500mg

Date Tested: 29 Aug 2025 Purity: 99.02%

Ipamorelin 10mg

Date Tested: 05 Sep 2025 Purity: 99.692%; 99.644%; 99.738%

GHK-Cu 50mg

Date Tested: 29 Aug 2025 Purity: 99.965%; 99.938%; 99.932%; 99.964%

BPC-157 10mg

Date Tested: 20 Aug 2025 Purity: 99.806%; 99.801%

Age Verification Required

Connected reading

Helpful context for this guide

Source-derived material selected through this article’s indexed topics.

Research context

Read sources and limitations before applying a claim.

High-purity peptides for research professionals.

Manufactured under strict quality controls and tested by independent labs — supplied exclusively for laboratory use. Tested by certified labs to verify identity and composition. Each batch is third-party tested for quality and consistency. Transparent formulations — research-backed and clearly labeled.

Source: ezpeptides.com ↗

Simplifying Research. Empowering Discovery.

At EZ Peptides, our mission is simple: make high-quality research materials accessible, reliable, and easy to work with. Headquartered in Albuquerque, New Mexico, EZ Peptides was founded to support the scientific community with rigorously sourced peptides intended strictly for laboratory research use only. Our commitment is to offer purity, transparency, and professionalism in every vial—backed by verified COAs and responsive support.

Source: ezpeptides.com ↗
P

About the author

Peptide Therapy Guide Editorial Team

Editorial team for Peptide Therapy Guide.

View all articles →