Looking after our skin is easier if we know what type of skin we have and use the appropriate products and advice. A description of skin type is given in this useful guide from WebMD site
http://www.webmd.boots.com/healthy-skin/guide/whats-your-skin-type
If you are unsure of your skin type then a visit to a qualified skin care practitioner can help you discover yours and ensure that you know how to take good care of it to maintain healthy skin.