Prevent staining foods and beverages like coffee, tea, red white wine

https://blogfreely.net/dernesvhbz/the-fact-about-charcoal-toothpaste-does-it-truly-whiten-69by

Prevent staining foods and beverages like coffee, tea, red wine, and curry after whitening; the first 2 days are important to preserve your new shade and avoid relapse.