Toner is a powder used in laser printers and photocopiers to form the printed text and images on the paper.
In skincare, toner refers to a liquid solution applied to the skin to cleanse and tighten pores.
The term "toner" also refers to:
1. A substance used in photography to alter the color of a photographic print
2. A coloring agent used in cosmetics
3. In music, a device that produces a steady tone