Your skin type largely determines the kind of skin care regimen you need to follow, the products you should use and the overall precautionary care you should use, whether it is oily, dry, normal or combination skin you have.
To know your skin type, you can do a simple self-test that should be done the first thing in the morning after you get up from sleep. To do this, take a dry tissue and wipe your face carefully but thoroughly. If you see some oil on the tissue, you definitely have an oily skin. Similarly, if you find grease only on the centre panel, this implies that you have a combination skin, with an oily T-zone.
In case the tissue comes out clean then you have a dry or normal skin. To end, you will know that you a dry skin if your skin is left feeling too tight, taut or overstretched.