Using this toner will improve the absorption of your other acne treatment products because your pores will be clear. Heal acne-prone skin and refine extremely oily skin by using this toner daily. La Roche-Posay Effaclar Clarifying Solution Acne Toner features salicylic acid for gentle exfoliation that helps minimize acne and smooth skin texture. La Roche-Posay Effaclar Dermatological Acne Treatment set reduces blackheads and acne by up to 60% in just 10 days with visible results after day 1. A rule of thumb is to start by using a toner for the face 2-3 times a week followed by a moisturizer until you ve gradually built up a tolerance for everyday use.