What is the best LED teeth whitening in Singapore?

Thank you for your question! (: There are various ways to whiten your teeth. In order of the “efficiency” and “effectiveness” as what you mentioned, I would rank them accordingly as such from fastest to slowest: In office teeth whitening (in the dental clinic)- generally an hour or so Take home teeth whitening kits (from a dentist)- may take days to 2 weeks OTC teeth whitening products- variable effects Teeth whitening effects are generally “quickened” when the concentration is higher.

In general, you should avoid eating or drinking anything that would stain a white shirt for 24-48 hours after a professional teeth whitening procedure is performed for you by your dentist. Examples of things to avoid include but are not limited to: 1. Smoking 2. Dark Coffees and Teas 3. Dark Sauces 4. Red Wine 5. Beetroot 6. Curries Do note that it is best that you get your teeth whitened by a licensed dentist in a registered dental clinic, rather than by a beautician, beauty therapist or beauty technician done in a spa or beauty parlour.