Amazing product! I have always struggled with breakouts, especially on the side of my face which I sleep. I tried several high-end skincare products to try to calm them, but nothing seemed to help and I really needed a solution that was more realistic than washing my pillows on a near daily basis. This serum has worked wonders for my skin since day one. I use it as a moisturizer at night, and not only did it completely clear any pimples that were brewing under my skin, I have also not had a single breakout since I started using it. This is the only product I have used that has made such a noticeable immediate difference to my skin. The serum is oil based and feels heavy when I put it on initially, especially since I have oily skin to begin with. However, by the time I wake up in the morning it has absorbed completely into my skin and I can't feel it at all. I definitely recommend a "less is more" approach when using the serum. Highly recommended overall!