As an Exuviance skin care seller I honestly say that it's very very difficult to minimize pores. But not forgetting that there are people who actually successfully minimize their opened pores. Try to go for premium brands such as Exuviance, Dr Seager, bwl, NeoStrata, etc. can be quite expensive though.

p/s: I'm sorry if I sound like I'm selling my products here. That is not my intention. Just sharing opinions and suggestions.