Alcina Brilliant Top & Base Coat gives your nail varnish added brilliance and keeps the colour in place for longer. The 2-in-1 product can be used as a top and base coat. For perfectly manicured nails. Can be used with Ultimate Nail Colour Products. When used as a base coat it prevents your nails from becoming discoloured. When used as a top coat it enhances the brilliance and hold of your nail colour.