The polyphenols in Seanol are designated as “phlorotannins” based on their complex chemical structures. Polyphenols are built on a skeleton structure composed of two or more “phenolic rings.” The lauded antioxidant properties of polyphenols stem from the ability of these rings to absorb unpaired electrons from free radicals. Phlorotannins contain numerous phenolic rings, making them powerful free radical scavengers, as confirmed by ORAC analysis. (ORAC is a laboratory analytical technique that measures the in-vitro capacity of a substance to neutralize free radicals.) Patented methods are used to extract and purify polyphenol/phlorotannins from Ecklonia cava. Vote down - Vote up