ers ens itivity . ▁ ▁Sign al : ▁a ▁brand ▁of ▁to oth paste ▁produced ▁by ▁the ▁Un ile ver ▁company . ▁Sign al ▁is ▁also ▁known ▁as ▁Pe ps od ent ▁( As ia ▁& ▁Latin ▁America ), ▁M ent ad ent ▁( Ital y ), ▁Zh ong ▁H ua ▁( Ch ina ), ▁A im ▁( G ree ce ), ▁Pro dent ▁( N ether lands ) ▁and ▁P / S ▁( V ietnam ). ▁ ▁So z od ont : ▁a ▁popular ▁brand ▁of ▁or al ▁h yg iene ▁product ▁from ▁the ▁mid - n in ete enth ▁century ▁to ▁the ▁early ▁tw enti eth ▁century . ▁According ▁to ▁an ▁ 1 8 8 9 ▁issue ▁of ▁the ▁journal ▁American ▁Dru gg ist , ▁So z od ont ▁was ▁made ▁from ▁a ▁liquid ▁and ▁pow der ▁mixture . ▁ ▁The ▁pow der ▁contained ▁or ris ▁root , ▁carbon ate ▁of ▁calci um , ▁and ▁mag nes ia . ▁ ▁The ▁liquid ▁contained ▁cast ile ▁soap ▁( soap ▁made ▁exclus ively ▁from ▁veget able ▁oil ), ▁g ly cer in , ▁s izable ▁port ions ▁of ▁water ▁and ▁alco hol , ▁and , ▁for ▁flav oring , ▁a ▁small ▁quantity ▁of ▁oil ▁of ▁pe pp erm int , ▁clo ver , ▁c inn am on , ▁and ▁star ▁an ise , ▁as ▁well ▁as , ▁for ▁color ing , ▁co ch ine al ▁( a ▁d ye ▁made ▁from ▁an ▁insect ▁of ▁the ▁same ▁name ). ▁ ▁St om atol :