Our high OPC pine bark extract is a complex mixture of plant phenolic compounds including many different flavonoids and phenolic acids that occur naturally in the pine bark.
Phenolic constituents include proanthocyanidins—these are oligo or polymers of catechins. The proanthocyanidins (often referred to as OPCs = oligomeric proanthocyanidins) are the most abundent group of phenolics in our high OPC pine bark extract with more than 80% by weight. Further, a diverse range of other flavonoids and related phenolics present in our extract include the monomeric catechins, quercetin, dihydroquercetin, myricetin, some stilbenes, hydroxylstilbenes, and phenolic acids. For more detailed information on proanthocyanidins and other flavonoids in Enzogenol© email firstname.lastname@example.org.