Polygel slip solution is a chemical that is used to make the consistency of Polygel thinner, making it easier to maneuver and allowing for a smoother application. The main ingredients in most brands of slip solution are Isopropyl Alcohol and Isobutyl Acetate, although the exact ingredients can vary between brands. Slip solution is typically used by applying it onto a Polygel brush and then using the damp brush to mold and work the Polygel.
Some alternatives to slip solution include rubbing alcohol, gel base coat, and acetone-free nail polish remover. Rubbing alcohol is the most commonly used substitute since it is the main ingredient in most slip solutions. Gel base coat can also be used as a substitute since it has a watery consistency that can act as a thinner. Acetone-free nail polish remover is another alternative, but it is the least recommended.