Hi! Ok, first of all it won't clog pores, cause its not absorbed by the skin at all, one of the best things about it. It can be used on the face, but like trisha said, its heavy coverage and time consuming, and MUST be mixed with a moisturizer (i actually prefer the KA Primer to mix with though). Also like Trisha said, apply it after foundation as u will wipe some away. Another way to use it is as a 'partial foundation' sorta using it as a concealor where needed, then u dont end up even needing foundation at all. This is actually my most favorite way as it is the most natural and not all of ur skin is actually covered. Lemme know if u need anymore help!