I don't understand what "dual action" means. The only acne-control ingredient in here is 0.5% salicylic acid, also known as beta hydroxy acid, BHA. It is a multifunctional acne-fighting ingredient. Salicylic acid is an effective exfoliant and also an anti-irritant. In concentrations of 0.5% to 2%, it gently exfoliates the surface of skin and penetrates into the pore, and thus can exfoliate inside the pore as well as on the surface of the skin, which makes it effective for reducing blemishes, including blackheads and whiteheads.It also treats acnes due to its anti-inflammatory and antimicrobial properties. Salicylic acid can improve skin thickness, barrier functions, and collagen production.
There is also powder to mattify oily skin but that risks clogging pores.
For a product designed for oily and often inflamed skin it is NOT good that they put in fragrance.
Safety alert: Cautious
review based on scientific information of the product ingredients.