Great product for the price, just as good as proactiv. Just keep cleanser, toner and lotion away from the skin under your eyes, it can irritate it, other than that its a great product! In just two days my skin was smoother and in a week the acne is almost clear!!! Side Effects nothing major, just irritates skin under eyes if contact occurs. Immediacy I saw results almost instantly. The sulfer mask smoothed out my face over night and by the end of week one im almost clear!