Go natural with Modern Products Swiss Kriss Lax (1x3.25 OZ). For Gentle Natural Relief of Constipation Swiss Kriss (Senna) (Cassia Angustifolia) is used as a powerful cathartic in the treatment of constipation. These Swiss Kriss herbal laxative flakes are naturally different. Known world-wide as the smoothest most satisfying laxative Swiss Kriss flakes are 100 natural contain no harsh synthetic drugs effective ingredients consist entirely of Nature's Own sun-dried leaves herbs and flowers. Swiss Kriss contains a blend of herbs and flowers that work in harmony with the body to relieve chronic or sporadic constipation and promote regularity without the side effects of synthetic laxatives.. (Note: Description is informational only. Please read the ingredient label on the product for more information and always consult your health professional with any questions prior to use.)