A toner is a product used by your hairstylist in order to personalize your look or achieve that beautiful platinum gold tone that you have desired for so long.
This type of product is not per se a permanent ‘dye’. Although it may seem colorful, it's a formula that enhances and cancels out stubborn undertones when bleaching. Because virtually all hair has some warm reddish tone, the warm essence is revealed when it's bleached. And as such, the darker the hair is, the harder it is to get out the orange and red undertones in one sitting.