The Borba Age Defying Concentrate does a good job at making my skin look a little brighter, and evened out, but there was one annoying drawback. This concentrate was really sticky, so I kept decreasing the amount I use using until I was using less than half the size of a pea and it was still making my skin feel sticky and rather unpleasant. Besides that, I really liked this concentrate, but I just couldn't get over how tight it made my skin. There were no side effects while using this concentrate, and it didn't clog my pores at all. But I didn't see a decrease in acne either. It didn't absorb too well into my skin either which is a pretty big drawback, but if you put it on as soon as you wash your face in the shower, it does a slightly better job. The price is sort of high for this concentrate, admitting it doesn't absorb that well and feels more like a mask. It is worth a try though, and I did notice that my skin did feel a bit smoother over time.