Fibronol contains SEANOL-F, a patented powerful extract derived from a specific species of brown seaweed Ecklonia cava, rich in phlorotannins/polyphenols that have uniquely strong antioxidant properties. These polyphenols are 40% oil-soluble, and have a metabolic half-life of up to 12 hours. This antioxidant has a unique molecular structure, with eight interconnected rings to scavenge free-radicals as opposed to the three or four found in most antioxidants, making SEANOL-F significantly stronger than even green tea. Phlorotannins support the cardiovascular system, brain, metabolism, and general health. Fibronol also contains vitamin B1, magnesium, malic acid and aloe vera extract.