The first 48 hours after whitening matter most: enamel is briefly more porous, so pale foods and clear drinks are your friends.
Small habits, lasting brightness
Rinse with water after coffee or tea, use a straw for darker drinks, and keep to a soft brush with a non-abrasive paste.
A hygiene visit every six months removes surface staining before it settles — and a gentle top-up treatment can refresh the result when you need it.