You can totally block out the discoloration, whether it's pink, red, or purple, if you find a foundation makeup with a high pigment level, says Hollywood makeup artist Maurice Stein. The normal range for most foundations is 12 to 15 percent. While you can't really tell the pigment level by looking at a product, you can tell by sampling it. "Take a drop of it and rub it on your skin," suggests Stein. "If it's so solid in color that you can't see your own skin underneath it, then you know it has a high pigment level and will do well in covering your blemish."