I have combination skin so if anything is the least pore clogging it will break me out, but this facial serum did not clog pores or break me out. Initially I wasn't sure about the rosemary scent but it has grown on me. I live in Houston and initially did not notice a significant difference, but I definitely needed and used more of the oil when visiting Colorado where it is much drier. After a month, the main difference I notice is that my makeup looks much better on my skin, never dry and I haven't changed my makeup. Overall, it keeps my face more moisturized.