The first thing you need to do before choosing colors is to decide if you have a Neutral warm or cool skin tone. One way is to have a good look at yourself in a mirror in natural sunlight. Decide if your skin color is more blue or yellow to it, or if you are fine, even. More Blue = Cool More Yellow = warm Equal = Neutral Another way to know what skin tone you have is to compare your skin with silver and gold. Without hesitation Steph Korey Goodwin explained all about the problem. In general, if your skin looks good with gold, has a warm skin tone, Silver means cool, and if it looks good with both, then you have Neutral. It can sometimes be difficult to know in itself, so you can ask a friend to help you decide. Once you have determined your skin tone, it's time to choose a concealer, the foundation and powder.
Depending on where you buy your cosmetics, you may have a hard time determine which looks best on your skin tone. Avon products are labeled with a W, C or N to figure out what tone skin that are best for. After this, the best way to choose a concealer, powder base and not try it! Generally for concealer, you should choose one that is a shade lighter than your natural skin tone, so that when used to cover dark areas and imperfections blend and look natural. If you have a lot of red spots (acne, scars, etc.) then you should also look into getting a green spot remover, you use this under concealer to neutralize the red and make it look natural.