Rebeca can answer that for you.
Pore size is genetically determined so, while you can't actually shrink them, there are some things you can do to minimize their appearance.
Pores can become enlarged and even infected when they're clogged with dead skin cells. Consistently use products with AHA's and BHA's to keep pores clear and healthy.
Dehydrated skin can trigger your oil glands to produce more than they normally would, leaving an oily shine that magnifies the appearance of pores. So don't skip a moisturizer, even if you have naturally oily skin!
Boost Collagen Production
Both aging and sun damage lessen the body's production of collagen and elastin, making pores sag and elongate. Find products that include collagen boosters such as peptides and adenosine to help your pores appear tighter and smaller.