If you don't have even skin tone use some make-up to achieve your desired look. Try using a foundation blended in well to hide blemishes and even out skin tone. Tip: first apply an oil-free moisturiser to keep the skin smooth and help ensure that the make-up lasts. If you didn't get much sleep but need to be on top form today - perhaps for an interview - then you can hide the signs. If you have dark patches under your eyes, then simply use a little concealer to hide the fact! Make sure to use a concealer brush to enable you to get maximum coverage from a minimum amount of concealer. Any uneven skin colour can be ironed out with a thin layer of oil-free foundation on your face. Make sure you use a yellowy undertone to get that natural look.