Applying toothpaste usually does not have the effect of whitening teeth and skin, and if applied to the skin, it may also cause skin irritation and lead to skin damage.
Toothpaste, a common cleaning product used in everyday life, does not usually have whitening properties. The main ingredient in toothpaste is a friction agent, and brushing with toothpaste can clean the food residue and soft dirt on the teeth, while the other effects are generally small.
There are many types and flavors of toothpaste on the market, and prices vary greatly. Applying toothpaste to teeth usually has no whitening effect. If you want to whiten your teeth, you can go to a hospital dentist and have your teeth whitened by cold light whitening. The effect of cold light teeth whitening usually does not last too long.
Dark skin is considered to be related to heredity, prolonged exposure to ultraviolet rays, skin discoloration and other factors. It is generally not recommended to use toothpaste on the skin to avoid irritation to the skin, which can lead to skin damage or darkening of the color.
In summary, toothpaste does not have the role of whitening teeth and skin, if the skin is darker, it is recommended to pay strict attention to sunscreen in general, and if necessary, go to the hospital dermatology department to find out whether it is related to pathological factors, but also for the primary disease to give treatment.