Maintain oral hygiene, limit staining foods/drinks, use a straw for staining beverages, rinse or brush after consuming, quit smoking and vaping, and attend regular dental check-ups. Whitening and charcoal toothpaste do not help; they are extremely abrasive and can actually brush away your natural enamel. Enamel is what we whiten during your treatment. No enamel = no whitening. Avoid smoking and stay hydrated. Consistency in care and mindful choices preserve your white smile's vibrancy.