Try not to take this oral liquid before menstruation. At present, Baoli whitening oral liquid sold in the market contains 10 bottles in each box, and each bottle has a capacity of 30ml. It tastes sweet, sour and delicious, and it is easy to be accepted. When drinking, you'd better drink it once a day before going to bed. Of course, everyone must avoid menstruation when drinking pola whitening oral liquid. If economic conditions permit, you can also take pola whitening pill, which can make your skin whiten faster. If it is a person with large pores or dull skin color, it is more appropriate to take whitening oral liquid reasonably. Polaroid whitening oral liquid can also dilute melanin. Compared with other whitening products, it is very safe. Can pola whitening oral liquid be drunk before menstruation? As can be seen from the article, pola whitening oral liquid cannot be drunk before menstruation. Of course, female friends should also avoid drinking this kind of oral liquid during the whole menstrual period. Its whitening effect is very good. If taken with whitening pill, people's skin will turn white as soon as possible.