Because the sponge is afraid of light, including the store lights are likely to damage its quality, so in the purchase of sponges, if it is hung in a row of the display, do not take the first one, but should take its back, because the back of the sponge will not enjoy a lot of "sunbathing." The other most practical way of distinguishing is to fold the sponge in half and rub it together. If you do not rub a few off the sponge crumbs, it is time to eliminate it.

 Generally speaking, the life expectancy of the cosmetic sponge is about one year or so. For people who wear makeup every day, it is best to change it three months to half a year to ensure that the skin is always delicate and delicate.