HELP YOUR BELLY SMILE Combining Lemon, Peppermint, Sweet Fennel, Clove, Ginger, Cardamom and Oregano essential oils, ECO. Digestive rollerball has been specifically developed to help support healthy digestion. With a lightly sweet, fresh and invigorating aroma, the combined effect of essential oils and massage will make your belly smile. Recommended use for nausea, poor digestion or intestinal spasm.