The purpose of this study was to exam some commercial seed oils as to the presence of natural compounds which could be helpful in the adjunct treatment of halitosis and stomatitis protetica. We examined eight commercial seed oils by spectrophotometer and HPLC analysis in comparison to the analytical standards. Using analytical methods we established the presence of chlorophyll, beta-carotene and tocopherols in the analysed materials. Pumpkin oil, containing the highest amount of chlorophyll and beta-carotene and a medium concentration of total tocopherols, could be the most effective in the adjunct treatment of halitosis and stomatitis protetica in the whole group of the examined seed oils.