HPLC purity database · independent lab data

Peptide Lab Tests

We aggregate 10,489 third-party lab tests covering HPLC purity, endotoxin levels, and quantity verification from independent laboratories. Every report is submitted by the community and verified before publication.

Lab tests
10,489
Peptides tested
64
Brands analyzed
234

Latest lab tests

Showing 181-200 of 262 · Page 10 of 14
Date
Peptide · sold by · tested by
HPLC purity
Qty match
Nov 18, 2025
Source: shop-providedEndotoxin: Pass - <0.05 EU/mg*
98.38%HPLC
87%of labeled
Nov 16, 2025
99.73%HPLC
108%of labeled
Nov 15, 2025
99.61%HPLC
119%of labeled
Nov 12, 2025
99.34%HPLC
104%of labeled
Nov 11, 2025
99.80%HPLC
100%of labeled
Nov 10, 2025
Source: shop-provided
99.72%HPLC
129%of labeled
Nov 10, 2025
99.66%HPLC
109%of labeled
Nov 10, 2025
Source: shop-provided
99.92%HPLC
134%of labeled
Nov 5, 2025
99.68%HPLC
112%of labeled
Nov 3, 2025
Kensington Labs · Janoshik Labs 🔍
Source: shop-provided
99.27%HPLC
127%of labeled
Nov 2, 2025
99.26%HPLC
116%of labeled
Nov 2, 2025
98.92%HPLC
129%of labeled
Nov 1, 2025
99.75%HPLC
125%of labeled
Oct 31, 2025
99.96%HPLC
110%of labeled
Oct 25, 2025
99.68%HPLC
124%of labeled
Oct 25, 2025
Source: shop-provided
99.73%HPLC
113%of labeled
Oct 23, 2025
99.72%HPLC
110%of labeled
Oct 22, 2025
99.55%HPLC
98%of labeled
Oct 20, 2025
Source: shop-provided
99.80%HPLC
73%of labeled
Oct 20, 2025
Source: shop-provided
99.94%HPLC
78%of labeled

🔍 = this test's lab publishes a public COA verification portal you can check the result against.

Showing 181-200 of 262

Browse by peptide

64 tracked

Browse by brand

234 brands

Understanding lab tests

01 · HPLC

What Is HPLC Purity Testing?

High-Performance Liquid Chromatography (HPLC) is the gold standard for measuring peptide purity. It separates compounds in a sample and measures the percentage of the target peptide versus impurities. 98%+ is pharmaceutical grade; 95%+ is research grade.

02 · Endotoxins

Understanding Endotoxin Levels

Endotoxins are bacterial lipopolysaccharides that can cause fever and inflammation. The FDA limit for injectable products is 5 EU/kg body weight per hour. Results below 0.1 EU/mg are typically considered safe for research applications.

03 · Submit

How to Submit Your Lab Test

Help the community by submitting your third-party lab test results. You'll need the original certificate from an accredited laboratory, details about the peptide and brand tested, and the testing date. All submissions are reviewed before publication.

Have a lab test COA?

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