After cleansing, put an adequate amount onto cotton pad and apply it to the areas of the face where blackheads occur.
- Must use sunscreen when using this product
- Do not use BHA products if you are allergic to aspirin.
- Do not use BHA liquid with any other highly concentrated AHA, BHA, retinol, or Vitamin C products.
- Begin with using the product once a week, and after the skin has adapted to it, increase the usage up to 2 to 3 times a week