I have been using 0.05% tretinoin nightly for a year. I’ve been using a salicylic acid cleanser in the morning for even longer. Tret has made my skin great, but I have had these random little red pimples on my forehead nearly constantly the entire time. I used this product for TWO DAYS and they were gone. I was speechless. I’m sure it has less to do with this specific product and more to do with finally using the correct ingredient (benzoyl perozxide), but for anyone else out there who has tried various other treatment modalities and who still finds themself with ‘stubborn acne’, this could very well be your solution.