trying it with other ordinary serums wow [SEP] i always love the ordinaryand so far i ve been using it for a few weeks now and i can see a big difference in my acne now it s awesome and i purchased a few other ordinary serums and i use them all my on my face before i go to bed i wait in between each one about ten or minutes to let it sink in my skin love them and acne and my large pores are getting smaller hope this helps