Like hydrogen peroxide, alcohol is used by many people to disinfect wounds. After applying alcohol to your skin, the coolness on your skin can make you feel that this is really effective, but alcohol actually damages the skin, especially with the facial skin. It causes the facial skin to dehydrate rapidly and become dry. It breaks down the DNA of both bacteria and skin cells, causing it to dry out and create dead cells. Before buying a toner, make sure it does not contain isopropyl alcohol (IPA) – which will erode the skin, clog the pores and affect the skin’s natural production process. Some sunscreen also contains alcohol. If you have dry skin, stay away from them. Do not forget to thoroughly read the ingredients of sunscreen before buying them.