Hismile purple toothpaste before and after
Purple toothpaste can temporarily alter the visual contrast of yellow tones, but it does not permanently bleach the internal colour of teeth.
The short answer
Purple pigments sit on or near the tooth surface and can create an optical colour correction after brushing. The effect is temporary because saliva, food, and brushing remove the pigment; it is different from peroxide whitening, which changes some stain molecules.
How should this toothpaste be used without swallowing it?
Use the product as directed, spit thoroughly, and avoid swallowing it. For a lasting shade change, a dentist should identify whether the colour comes from surface stain, enamel, dentine, medication, trauma, or a restoration before choosing cleaning or whitening.
When should an unusual tooth colour be assessed?
Seek assessment for a single grey or brown tooth, sudden colour change, pain, or a stain that does not respond to cleaning. Stop using the product if it irritates the mouth or worsens sensitivity.
What should you ask about stains and existing restorations?
Ask whether your colour is surface stain or intrinsic discolouration, whether peroxide whitening is suitable, and how existing fillings, crowns, or veneers will compare afterward.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.