Skin pores are actually just the outlet ducts for hair and sebum, which is just an oil that helps to prevent your skin from drying out. Pores are home to hair follicles and, as such, cover your body from head to toe (except the palms of your hands, the soles of your feet, your eyelids, and a few other limited areas.) The size of the pores on your body is determined by genetics, with some people having larger pores and some people having small pores. Despite their genetic underpinnings, the appearance of pores is still influenced by environment. Notably, pores can stretch and thus appear larger than they otherwise might. Keeping pores relaxed and at their smallest size can go a long way to helping you avoid acne. Here are ten ways to minimize pore size.