Purple Toothpaste is a post-whitening treatment that restores brightness and neutralises yellow tones on the tooth surface, purple is directly opposite yellow on the colour wheel and is therefore its complementary colour, so a water-soluble purple dye is applied to your teeth to cancel out any yellow undertones, by counter-balancing the different hues in your teeth, Purple Toothpaste conceals stains and improves brightness. Purple Toothpaste utilises colour correcting technology. Purple is directly opposite yellow on the colour wheel and is therefore its complementary colour, so a water-soluble purple dye is applied to your teeth to cancel out any yellow undertones. Purple Toothpaste colour corrector toothpaste combination of two water-soluble dyes allow for any shade of yellow to be cancelled for the brightest smile, without leaving behind any residue. Oxidising tooth stains with PAP+ increases the lightness and reduces the saturation of yellow stains, whereas Purple Toothpaste balances the warm and cool tones (hue) in your teeth to reveal a more vibrant shade of white. Purple toothpaste is a non-invasive brightening treatment. Simply apply the Purple Toothpaste to your toothbrush like a regular toothpaste, and brush! Purple Toothpaste is intended for people who are looking to further brighten their teeth post-whitening, or already have a very white tooth shade and dont require a full treatment from the Teeth Whitening Kit.