. . . "Furthermore, if desired, preservatives such as methyl, ethyl, sipyl, and butyl p-hydroxy benzoates sodium benzoate, and monoglycerides of lower fatty acids; flavors such as winter green oil, spearmint oil, peppermint oil, sassafras oil, clove oil, and eucalyptus oil; brightening agents such as gelatin, peptone, alginine hydrochloride, albumin, casein, and titanium dioxide; silicone; coloring agent" .