Masurf® Emulsifying Wax is a nonionic self-emulsifying wax prepared from high purity, naturally plant derived cetearyl alcohol and polysorbate 60. Monographed in the National Formulary NF XVII, Masurf® Emulsifying Wax is the premier nonionic self-emulsifying wax used in the cosmetic and pharmaceutical industries, and is now available in a convenient pastille form.