Collection: Vitamin Standards

These synthetic stable isotope-labelled vitamin D2, D3, E and cholesterol products, along with their hydroxy metabolites, are of the highest quality and used by researchers worldwide. These stable isotope-labelled standards are optimal for use as gold standard analytical standards and as such are trusted in the analytical protocols of global nutrition companies and bioanalytical contract research organizations on five continents.

Collapsible content

Learn more about Vitamin Standards