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 45 · Page 2 of 3
Date
Peptide · sold by · tested by
HPLC purity
Qty match
Mar 2, 2026
Source: shop-providedEndotoxin: < 0.001 EU/mg
99.60%HPLC
99%of labeled
Feb 27, 2026
99.85%HPLC
109%of labeled
Feb 25, 2026
99.60%HPLC
115%of labeled
Feb 23, 2026
99.65%HPLC
102%of labeled
Feb 20, 2026
98.07%HPLC
99%of labeled
Feb 16, 2026
99.78%HPLC
137%of labeled
Feb 16, 2026
99.78%HPLC
137%of labeled
Feb 4, 2026
99.82%HPLC
148%of labeled
Jan 16, 2026
99.56%HPLC
-of labeled
Jan 12, 2026
Penguin Peptides · Unknown lab
Source: shop-provided
98.98%HPLC
100%of labeled
Jan 12, 2026
99.58%HPLC
100%of labeled
Dec 20, 2025
99.44%HPLC
173%of labeled
Dec 16, 2025
99.80%HPLC
102%of labeled
Dec 1, 2025
99.86%HPLC
100%of labeled
Nov 22, 2025
Source: shop-providedEndotoxin: ≤ 0.05 EU/mL
99.85%HPLC
123%of labeled
Oct 28, 2025
Source: shop-provided
98.47%HPLC
107%of labeled
Oct 14, 2025
Source: shop-provided
99.18%HPLC
86%of labeled
Oct 12, 2025
Source: shop-providedEndotoxin: < 0.001 EU/mg
99.80%HPLC
109%of labeled
Sep 12, 2025
Source: shop-providedEndotoxin: < 0.001 EU/mg
99.20%HPLC
108%of labeled
Jun 18, 2025
99.33%HPLC
118%of labeled

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

Showing 21-40 of 45

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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