Pore size is a genetic condition, but the problem of large pores tends to affect people with oily/oily and combination skin. The pore's wall is elastic and therefore the sebum in it can expand in size. Chemical exfoliants, in particular one of the most gentle types, salicylic acid, can be an effective solution because of their ability to penetrate deep into the pores and cleanse them from the inside. Choose products with a lighter consistency and avoid drying cleansers and cosmetics. Sun protection is also a very important part of skin care for those with large pores. The harmful rays of the sun age the skin, causing the pore walls to lose their tightness and elasticity, which in turn leads to wider pores.