Daggett & Ramsdells Calcium-Rich Moisturizing Formula Provides A Perfect Foundation Base Coat For Your Nail Polish. Helps Smooth Unevenness And Ridges So That Polish Goes On Smoothly And Evenly And Allows Nail Polish To Adhere Better. Acts As A Protective Barrier To Prevent Nail Polish Color From Staining Your Nails. Can Be Used Alone For A Long-Lasting Gloss Finish.