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 1-20 of 74 · Page 1 of 4
Date
Peptide · sold by · tested by
HPLC purity
Qty match
Jul 9, 2026
Source: shop-provided
98.53%HPLC
114%of labeled
Jul 7, 2026
Source: shop-providedEndotoxin: <0.05 EU/mL
99.90%HPLC
102%of labeled
Jun 23, 2026
Source: shop-provided
99.74%HPLC
107%of labeled
Jun 3, 2026
Source: shop-provided
99.81%HPLC
121%of labeled
Jun 3, 2026
Source: shop-provided
99.82%HPLC
121%of labeled
Jun 2, 2026
Source: shop-providedEndotoxin: PASS (≤0.5 EU/mL)
99.72%HPLC
115%of labeled
May 20, 2026
99.54%HPLC
122%of labeled
May 20, 2026
Source: shop-providedEndotoxin: 0.007 EU/mg
99.80%HPLC
117%of labeled
May 18, 2026
Source: shop-providedEndotoxin: Pass
99.56%HPLC
118%of labeled
May 6, 2026
Source: shop-provided
99.41%HPLC
109%of labeled
Apr 22, 2026
Source: shop-providedEndotoxin: 0.071 EU/mL
99.23%HPLC
104%of labeled
Apr 20, 2026
Source: shop-providedEndotoxin: 0.020 EU/mg
99.80%HPLC
94%of labeled
Apr 13, 2026
Source: shop-providedEndotoxin: <0.05 EU/mL
99.80%HPLC
113%of labeled
Apr 9, 2026
Source: shop-provided
98.37%HPLC
104%of labeled
Apr 7, 2026
99.93%HPLC
99%of labeled
Apr 3, 2026
Source: shop-providedEndotoxin: Replicate 1: Pass / Replicate 2: Pass
99.68%HPLC
135%of labeled
Apr 2, 2026
99.38%HPLC
100%of labeled
Mar 30, 2026
Source: shop-provided
99.87%HPLC
120%of labeled
Mar 25, 2026
Source: shop-provided
99.99%HPLC
118%of labeled
Mar 25, 2026
Source: shop-providedEndotoxin: ≤0.5 EU/mL (Pass)
99.97%HPLC
118%of labeled

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Showing 1-20 of 74

Browse by peptide

64 tracked

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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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