Vendor directory

All vendors

Showing 83 vendors with COAs on file· 166 indexable vendor pages. Sort and filter by the evidence — COA volume, independent labs, measured purity, and how recently they've tested.

Sort

Ships from

Min COAs

83 vendors shown

Active vendors 55

Strong · 87

Active

Verified Peptides

🇺🇸

est. 2020

648 COAs · 1 lab · latest Jul 2026

Median purity 99.7%

View profile →

Strong · 99

Active

Peptide Partners

🇺🇸

Sheridan, WY

· est. 2014

366 COAs · 4 labs · latest Jul 2026

Median purity 99.7%

View profile →

Strong · 90

Active

Skye Peptides

🇺🇸

Los Angeles, CA

· est. 2023

350 COAs · 2 labs · latest May 2026

Median purity 99.7%

View profile →

Strong · 85

Active

Simple Peptide

🇺🇸

Delray Beach, FL

· est. 2023

275 COAs · 1 lab · latest Apr 2026

Median purity 99.7%

View profile →

Strong · 96

Active

BioLongevity Labs

🇺🇸

Akron, OH

· est. 2024

249 COAs · 3 labs · latest May 2026

Median purity 99.8%

code MERIT · 15% off Visit site

View profile →

Strong · 99

Active

Glacier Aminos

🇺🇸

Fort Collins, CO

· est. 2016

188 COAs · 6 labs · latest May 2026

Median purity 99.8%

code MERIT · 10% off Visit site

View profile →

Strong · 95

Active

Profound Aminos

🇺🇸

Minneapolis, MN

· est. 2025

186 COAs · 4 labs · latest Jun 2026

Median purity 99.8%

View profile →

Strong · 95

Active

Orbitrex Peptides

🇺🇸

Flower Mound, TX

· est. 2025

143 COAs · 7 labs · latest Jun 2026

Median purity 99.7%

code Orbitrex10 · 10% off Visit site

View profile →

Strong · 95

Active

Reta One Labs

🇺🇸

Cypress, TX

· est. 2025

139 COAs · 3 labs · latest Aug 2026

Median purity 99.8%

Visit site

View profile →

Strong · 97

Active

Hydro Research Peptides

🇺🇸

Chicago, IL

· est. 2023

133 COAs · 3 labs · latest Jul 2026

Median purity 99.7%

code MERIT · 15% off Visit site

View profile →

Strong · 94

Active

Peptide Crafters

🇺🇸

116 COAs · 4 labs · latest Jul 2026

Median purity 99.7%

code CRAFTERS10 · 10% off Visit site

View profile →

Strong · 89

Active

Peptidology

🇺🇸

Scottsdale, AZ

· est. 2024

108 COAs · 2 labs · latest May 2026

Median purity 99.5%

View profile →

Closed 4

Limited · 45

Closed

Strate Labs

est. 2025

7 COAs · 1 lab · latest Jul 2026

Median purity 99.4%

View profile →

Limited · 47

Closed

MEI-PEPETIDE

🇨🇳

Qingdao

· est. 2025

4 COAs · 1 lab · latest Jul 2025

last tested 14 months ago

Median purity 99.7%

View profile →

Moderate · 54

Closed

Nox Amino

🇺🇸

est. 2026

4 COAs · 1 lab · latest May 2026

Median purity 99.7%

View profile →

Limited · 49

Closed

Taikangbio

🇭🇰

· est. 2026

3 COAs · 1 lab · latest Apr 2026

Median purity 99.8%

View profile →

Unknown status 24

Strong · 95

Unknown

Ion Peptide

🇺🇸

Alpharetta, GA

· est. 2025

694 COAs · 5 labs · latest Jul 2026

Median purity 99.7%

View profile →

Strong · 85

Unknown

EZ Peptides

🇺🇸

Albuquerque, NM

· est. 2023

291 COAs · 1 lab · latest Jul 2026

Median purity 99.7%

View profile →

Strong · 82

Unknown

Modern Research Peptides

est. 2025

107 COAs · 1 lab · latest Jul 2026

Median purity 99.7%

View profile →

Strong · 88

Unknown

Ruo Bio

🇺🇸

est. 2025

89 COAs · 2 labs · latest Jul 2026

Median purity 99.5%

View profile →

Strong · 88

Unknown

Sunrise Bioresearch

🇺🇸

Tucson, Arizona

· est. 2025

87 COAs · 2 labs · latest Aug 2026

Median purity 99.7%

View profile →

Strong · 90

Unknown

Polaris Peptides

🇺🇸

Las Vegas, NV

· est. 2024

71 COAs · 2 labs · latest Jun 2026

Median purity 99.7%

View profile →

Strong · 89

Unknown

Soma Peptides

🇺🇸

Murrieta, California

· est. 2024

62 COAs · 2 labs · latest Jun 2026

Median purity 99.7%

View profile →

Strong · 96

Unknown

Moglabs

🇺🇸

Sheridan, WY

· est. 2014

56 COAs · 3 labs · latest Jul 2026

Median purity 99.2%

View profile →

Moderate · 60

Unknown

Certified Peptides

🇺🇸

est. 2024

50 COAs · 2 labs · latest Dec 2025

last tested 9 months ago

Median purity 99.3%

View profile →

Strong · 94

Unknown

Nova Peptides

est. 2025

46 COAs · 3 labs · latest Jul 2026

Median purity 99.5%

View profile →

Strong · 86

Unknown

optimasupply.is

46 COAs · 2 labs · latest Aug 2026

Median purity 99.5%

View profile →

Strong · 88

Unknown

Arcane Peptides

🇺🇸

est. 2025

39 COAs · 2 labs · latest Jul 2026

Median purity 99.6%

View profile →