Para-Tein 1 Gallon [Pariser]Para Tein Para Tein is a product used in the removal of blood urine, milk, perspiration and other protein type stains. It shows great application on the spotting board of professional dry cleaners, and in most institutional laundries. Application 1. Before spotting unfamiliar material or garments, always test on inside seam for colorfastness of dye. 2. Apply Para Tein directly to the stained area of the linen. 3. If necessary, work the area gently