COA

At Precision Peptides, analytical integrity is our baseline. Every synthesized compound undergoes rigorous High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) testing to verify molecular structure and guarantee a minimum purity threshold of ≥99.0%. Below is our public repository of batch-specific Certificates of Analysis conducted by independent, accredited domestic laboratories.

COA Database

Independent Third-Party Laboratory Verification

HPLC Testing

High-Performance Liquid Chromatography separates, identifies, and quantifies each component in a mixture, ensuring the peptide is completely free from synthesis impurities.

Mass Spectrometry (MS)

Measures the mass-to-charge ratio of ions, definitively verifying the exact molecular weight and amino acid sequence of the synthesized compound matches the structural data.

Our 6-Point Quality Verification.

Independent accredited laboratories verify each batch of peptides. Researchers receive high-quality certified peptides evaluated for purity, identity, consistency, and reliability.

01

Purity Analysis Through HPLC

High-Performance Liquid Chromatography (HPLC) confirms that every single peptide accounts for more than 99% of its total content.

02

Mass Spectrometry Identity

Mass spectrometry confirms the molecular identity of each peptide and whether its sequence is accurate.

03

Heavy-Metal, Endotoxin, and LPS Screening*

For select products, screening is performed for endotoxins and lipopolysaccharides (LPS) through LAL testing, as well as heavy metals.

04

Verification for Sterility*

Sterility testing is performed on select batches through accredited laboratory tests to confirm no detectable microbial contamination.

05

Content Quantification

Our team confirms that the weight and concentration on the label are accurate, ensuring you get every milligram ordered.

06

Appearance & Physical Check

At this stage, we inspect every vial to verify lyophilization quality, packaging integrity, and labeling accuracy before release.

Guaranteed Purity

0 %+

Tested Per Batch*

0 x

Endotoxin Tolerance

0 %

COAs Published

0 %

*Disclaimer: Full 6-point verification testing (including heavy metals, endotoxins, and sterility screening) applies to select products. All products undergo our standard 4-point verification protocol (Purity Analysis, Mass Spectrometry, Content Quantification, and Appearance/Physical Check).