Cornell Researchers find ShanStar cranberry extract has 32 to 86 times more antioxidant activity than an equivalent amount of raw cranberries.

Cellular Antioxidant Activity (CAA) of ShanStar^TM Cranberry Extract.

*- CAA assay by Wolfe and Liu, J. Agric. Food Chem. 2007, 55, 8896-8907