Better Beard Club Different resources of silica consist of horsetail and oat straw or the stalks left as soon as the oats had been harvested. although now not conventionally eaten those sources are used for the training of silica supplements. It has often been claimed that beer is a good source but best because silica is frequently used in first-class powder shape to act a defoamer in beer. http://guidemesupplements.com/better-beard-club/