As the saying goes, “one white covers all ugliness”, although it mainly refers to the white skin, it seems that this sentence also holds for teeth. Many stars show white and neat teeth when they smile, which is especially beautiful. At the same time, there are also some [secret recipes] circulating among the people that can whiten teeth. Let’s see if these methods really work or are just erroneous. Containing vinegar or lemon juice It doesn’t work, it’s harmful! Perhaps someone was inspired by [white vinegar can remove scale] and felt that white vinegar is acidic and can dissolve scale, so it should be able to remove [tartar]. Anyway, the composition is similar. Indeed, very sour vinegar or lemon juice Read More …