Primers are the products used for oil control as well as to create a perfect Base for the application of any further products. Coming to eye Primers, they prevent the eyeshadows from creasing on the lid due to oil secretion and they help makeup last much longer. Concealer cannot perform all these functions and can merely be used to even out the tone of the skin.
Concealers can be used as eyeshadow primers in the following cases:
1. When eyelids are a little dark in color, they provide a uniform base so that the eyeshadows can show up better.