White is the color that most people value in their smile because of the positive effect it gives. This is why there is no surprise that home teeth whitening products are becoming very popular and in demand. But what most people overlooked is the fact that not everyone has the same reason of teeth discoloration. It is very vital to know what causes your teeth discoloration before grabbing any kind of teeth whitening products in the market to avoid side effect in the future. This over the counter teeth whitening kits are only helpful if the cause of your teeth discoloration is just in the surface. But if the cause is deep within your gums, you must have the right teeth whitening treatment for you. Beside, not all over the counter teeth whitening will work exactly the way they advertised it to be.