CND Shellac Base Coat and Top Coat deliver the foundation and finish every professional gel manicure needs. The base coat creates a seamless bond between the natural nail and color, while the top coat seals in polish with a durable, high-gloss shine. Each coat applies in one thin layer and cures quickly under UV or LED light. Together, they anchor the Shellac system for long-lasting, flawless wear.This set includes one 0.25 fl oz bottle of Base Coat and one 0.25 fl oz bottle of Top Coat. Both formulas are HEMA-free, vegan, and designed for professional application. The result is a mirror-smooth finish that resists chips and maintains clarity from day one through week two.How to Apply Apply a thin layer of Base Coat and cure under UV or LED light. Apply your chosen Shellac color and cure. Seal with a thin layer of Top Coat and cure for a high-gloss finish. Product Details Formula: HEMA-Free, Vegan, Professional, Longwear