Method: LC-MS/MS (Liquid Chromatography/Tandem Mass Spectrometry) with creatinine normalization by Jaffe Reaction (CLIA 17D0919496); not cleared or approved by the FDA. Results reported in µg/g creatinine. Not a stand-alone diagnosis; should be interpreted in clinical context.
A derived biomarker is a value that is calculated from other directly measured biomarkers rather than being measured directly in the lab.
Key benefits of Propylparaben (PrP) testing
- Propylparaben food and cosmetic preservative tracking
- restricted-compound exposure assessment
What is Propylparaben (PrP)?
Propylparaben (PrP) is a common preservative in cosmetics, personal care products, pharmaceutical formulations, and some processed foods. Some jurisdictions have restricted its use in personal care products for young children. Measured via LC-MS/MS.
Why is Propylparaben (PrP) important?
Among parabens, propylparaben has received attention in research for potential hormonal effects. It may appear in a wider range of product categories than other parabens, including some pharmaceuticals and processed foods - broadening the potential exposure routes.
What insights will I get?
Your PrP level may reflect multi-paraben preservative systems in personal care products, as well as pharmaceutical or processed food sources. Elevated levels alongside other parabens may suggest high overall paraben exposure worth exploring.





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