The consistency of this product is very thin, and I've found that only a little bit is needed to cover my forehead (my face's acne HQ!). The active ingriedient in this serum is salicylic acid, which usually isn't very effective on my skin. Regardless, I have noticed that the few bumps I've had have faded away a little. Of course, this may be due to the mask I have been using as well. Overall, its a good product but I would probably suggest to keep your money on this one. There are many other products out there that are much cheaper that use salicylic acid, and I'm sure you can find one that use natural ingridients as well like Juice Beauty does but for less than 30 bucks. I did, however, find it more effective than Lush's grease lightening, which I am using as well.