I have very picky skin - prone to acne but ridiculously sensitive. I had a major breakout after having a baby (hormonal shifts), and needed to give something else a try. This cleared me up in about 3 days without totally over-drying. It was pretty amazing. I recommend using the spot treatment sparingly because it is pretty powerful. Effectiveness Really effective without being too over-drying. You can actually smell the colloidal oatmeal in the product too. Ease of Application Lathers and foams nicely. Second step is just your usual toner. Third step I used as a spot treatment only. Convenience I wish there weren't three steps (I'm lazy about my skincare when it's night and I just want to go to bed!), but I will do three steps for this kind of effectiveness. Side Effects Some drying out, which is typical for this kind of product, but no where near bad symptoms. It is the most effective product I've used for fighting acne while not completely drying skin out and making it red and flaky. Immediacy Worked in about 3 days with a really horrible, complete face breakout!