I-Stain Thomas Labs, Powder, 8 oz Contains a balanced ration of the proteolysis enzymes lipase; amylase and protease to ensure an effective digestive process Especially beneficial for dogs and horses with digestive problems Assists with allergies; weight loss; cribbing; colic; hairballs and improving skin and coat Safe and Natural. For animals whose eyes constantly water and stain the area around the eyes. Works by addressing the problem from the inside out.