"Color Wow Root Cover Up Black 2.1g is a professional powder compound that quickly and easily covers up dreaded roots and regrowth with no mess for perfect results in under a minute. This unique powder compound adheres to hair without being sticky or oily and without dulling or looking dry. Its water-resistant formula means the results last from shampoo to shampoo, but you can swim, sweat and sleep and the powder will stay in place. Plus, each shade contains a variety of pigments and reflective particles to ensure a natural match with many different hair colours. Apply to dry hair for best results."