This special castor oil-based formula will not break down synthetic prosthetics like a petrolatum or mineral oil based formula would. Mehron‰۪s Mask Cover is the first choice of professional special effects artists for use on latex, rubber and foam prosthetics. Product and color selections were developed in conjunction with Academy Award winning makeup artist Dick Smith. Available in a variety of colors and a variety of palettes. Application: Apply with a sponge using a ‰ÛÏpatting‰ or ‰ÛÏstippling‰ technique, not a stroking motion. Set with Colorset Powder. Apply cream makeup for final application to blend with skin tone. Remove with Makeup Remover followed by soap and water.