Aftercare is crucial for maintaining the results of teeth whitening treatments and preventing new stains from forming. Clients at SOS Wax and Skincare should be advised to avoid foods and drinks that can stain the teeth, such as coffee, red wine, and dark berries, for at least 48 hours post-treatment. Additionally, using a straw for beverages, brushing with a whitening toothpaste, and avoiding tobacco products can help prolong the whitening effects. Educating clients on proper aftercare practices ensures they get the most out of their whitening treatment and maintain a bright, white smile for as long as possible. This tip is particularly important for clients who regularly consume staining foods or drinks, as it helps them understand how to protect their investment in whitening. Providing this guidance enhances client satisfaction by helping them achieve and maintain their desired results.