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 21-40 of 199 · Page 2 of 10
Date
Peptide · sold by · tested by
HPLC purity
Qty match
May 12, 2026
Source: shop-providedEndotoxin: <0.05 EU/mL
99.90%HPLC
121%of labeled
May 9, 2026
KLOW
Source: shop-providedEndotoxin: Pass, Assay Sensitivity: ≤0.05 EU/mL
99.78%HPLC
-of labeled
May 8, 2026
99.82%HPLC
103%of labeled
May 8, 2026
99.91%HPLC
113%of labeled
May 6, 2026
99.18%HPLC
105%of labeled
May 6, 2026
99.68%HPLC
106%of labeled
May 5, 2026
99.72%HPLC
100%of labeled
May 5, 2026
99.33%HPLC
100%of labeled
Apr 22, 2026
Source: shop-providedEndotoxin: 0.175 EU/mL
98.89%HPLC
104%of labeled
Apr 21, 2026
99.22%HPLC
112%of labeled
Apr 19, 2026
Source: shop-providedEndotoxin: Pass
99.42%HPLC
100%of labeled
Apr 15, 2026
99.63%HPLC
107%of labeled
Apr 12, 2026
99.00%HPLC
103%of labeled
Apr 12, 2026
99.00%HPLC
104%of labeled
Apr 10, 2026
99.84%HPLC
114%of labeled
Apr 9, 2026
99.87%HPLC
106%of labeled
Apr 3, 2026
Source: shop-providedEndotoxin: ≤0.05 EU/mL
99.80%HPLC
108%of labeled
Apr 2, 2026
99.30%HPLC
131%of labeled
Mar 30, 2026
99.82%HPLC
115%of labeled
Mar 26, 2026
98.95%HPLC
116%of labeled

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

Showing 21-40 of 199

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.

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