After taking off the mask, what then?
After taking off the mask, pat and massage your face. When you do this, the blood circulation of your face will be enhanced and it will helps the serum to be furthered absorbed. After massaging for about 15 mins, if there is still excessive serum, it means your skin has reached its saturation state and it simply cannot absorb further. So we can just gently wipe away the excessive serum.
Because serum is usually water based, it can be easily lost and evaporated. The serum from a mask will be "locked" into the skin if you apply face cream/lotion afterward (since face cream/lotion is usually oil based). Therefore, it's a recommended step after using mask.