Natural Immune Support Agents from Gigartina SkottsbergiiClinically FormulatedHighest Source of Sulfated Polysaccharides from 30% ExtractGluten FreeNon-GMOSoy FreeDietary SupplementLook What's Inside - Full Disclosure LabelingMade in the USA Since 1992Four capsules of Gigartina skottsbergii extract provide 300 mg of sulfated polysaccharides, known to be natural immune support agents.