Not all pores are the same—so why treat them the same? your pore shape can reveal what your skin is struggling with and what you should do about it! O-shaped pores: Usually linked to excess oil. They appear round and large, especially in the T-zone. This is common in oily skin types (like mine!), and responds well to ingredients like salicylic acid and niacinamide. U-shaped pores: A sign of dehydration. Skin lacks water, making pores look droopy or wide. Adding hydrating toners, glycerin...