Help to prevent urushiol dermatitis caused by the oils of Poison Ivy, Sumac, and Oak. This contact with your skin can causes blisters, itchy, irritating, and painful skin rashes that can last up to 12 days. Formulated with 5 ingredients to help stop the oil from entering the skin Bentonite Clay, Zinc Acetate, Witch Hazel, PVP Film Former and Dimethicone. After returning home wash off with IC Ivy Cleanse. The only formula using Bentonite Clay.