IvyX Pre-Contact Skin Barrier. The pre-contact skin solution helps to provide a barrier against environmental allergens, specifically poisonous plant oil. There is no wait time, simply apply Ivy X Pre-Contact to exposed skin and immediately start your outdoor task. Ivy X Pre-Contact is almost unnoticeable on the skin, drying quickly without a greasy or sticky residue and washes off easily with soap and water. The Ivy-X Pre-Contact bottle is ideal for a first aid kit or as a stand alone supply.