Perfect Primer is a high-quality liquid that etches the natural nail plate. Increases the adhesion of the layer applied to the nails. Prevents lifting of the material. It can be used both under and under acrylic. Features: - product without acid - it is used without hardening in the lamp (it dries on the nail plate) How to use: Apply a thin layer with a brush to the nail plate and wait a little for it to dry (a sticky layer remains).