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 61-80 of 152 · Page 4 of 8
Date
Peptide · sold by · tested by
HPLC purity
Qty match
Jan 24, 2026
Cagrilintide / Semaglutide
Source: shop-provided
99.82%HPLC
-of labeled
Jan 23, 2026
99.55%HPLC
103%of labeled
Jan 23, 2026
99.76%HPLC
126%of labeled
Jan 22, 2026
Source: shop-providedEndotoxin: ≤0.5 EU/mg (Pass)
99.70%HPLC
110%of labeled
Jan 21, 2026
99.77%HPLC
114%of labeled
Jan 21, 2026
99.88%HPLC
127%of labeled
Jan 21, 2026
99.68%HPLC
100%of labeled
Jan 21, 2026
99.87%HPLC
100%of labeled
Jan 19, 2026
99.81%HPLC
119%of labeled
Jan 15, 2026
99.83%HPLC
124%of labeled
Jan 15, 2026
99.54%HPLC
45%of labeled
Jan 13, 2026
99.83%HPLC
111%of labeled
Jan 12, 2026
Source: shop-providedEndotoxin: PASS (≤0.65 EU/mL for both replicates)
99.68%HPLC
111%of labeled
Jan 12, 2026
99.57%HPLC
90%of labeled
Jan 12, 2026
99.63%HPLC
111%of labeled
Jan 11, 2026
99.86%HPLC
100%of labeled
Jan 9, 2026
99.62%HPLC
95%of labeled
Jan 9, 2026
99.86%HPLC
238%of labeled
Dec 26, 2025
Source: shop-providedEndotoxin: ≤ 0.05 EU/mL
99.78%HPLC
97%of labeled
Dec 23, 2025
Cagrilintide / Semaglutide
Source: shop-provided
99.75%HPLC
-of labeled

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Showing 61-80 of 152

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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