The active ingredient in S.E.P. is Glutamic Acid. When Glutamic Acid is mixed with the stomach acids, the stool becomes bitter to the taste, which deters the dog from eating the stool.undefinedundefinedIf you have any questions about the supplements or products you have purchased, please call our toll-free number or email us at service@onlynaturalpet.com.undefinedundefinedAvailable in 3.5 oz ...