Proven effective by clinical studies.Thumb Sucking DeterrentOakhurstActive Ingredients:Cayenne Pepper Extract; Citric Acid; Isopropyl Alcohol; Acetone; LacquerApply to dry finger nails twice a day to help break the habit of NAIL BITING and THUMB SUCKING. Allow 'THUM' to dry. Remove 'THUM' with nail polish remover.Uses:For adults, teenagers and children. Help break the habit of nail biting and thumb sucking with the first application. THUM contains a bitter tasting, but harmless pure vegetable product which acts as an immediate reminder whenever user puts finger in mouth. Unlike other preparations, THUM contains no ingredients to cause nausea or upset stomach.In case of accidental ingestion, seek professional assistance or contact a poison control center immediately. Keep out of reach of children.