What is it: Powder Perfection - Step 2 Activator from OPI, which accelerates the curing of base coat with dipping powders and initiates the reaction with Top Coat. What it does: An activator that accelerates the curing of Base Coat with dipping powders & initiates the reaction with Top Coat. Easy brush-on application & color-coded cap to help nail techs with quick identification. What else you need to know: The second step used in a Powder Perfection service. Powder Perfection is a quick-applying, odor-free acrylic alternative that promotes a clean-air environment while offering gel-like shine.