... and high quality sealwort extract powder, sealwort rhizome extract, sealwort root extract, sealwort extract, polygonatum ... sample.General InformationProduct Name:polygonatum officinale rhizome extractOther Name:sealwort rhizome extract, Sealwort extractExtract Source:Rhizoma ... internal heat, wasting thirst, etcFunctions1.Polygonatum officinale rhizome extract to nourish yin, promote the production ...