Use at the toner or essence step after cleansing. If used as toner, make sure the liquid is fully absorbed before applying next step skincare products.

Recommend to use 2-3 times in a week, and gradually build up the usage according to the skin condition.
Must be used with sunscreen in daylight.
Do not use BHA products if you are allergic to aspirin.
Do not use BHA liquid with any other highly concentrated AHA, BHA or Vitamin C products.