Highlighters, Illuminators and Shimmers

I have a crush on highlighers, illuminators and shimmers. Anyone can wear a highlighter and needn't look like a disco ball; there are plenty of different looks you can create with these products:

Brighten Up with Highlighting Concealer

Firstly : What is Highlighting Concealer??

It can all be very confusing but in simple terms it's a thin concealer that bounces light to brighten and contour the face. 

A standard concealer has a thicker consistency, and is used to cover blemishes and dark circles under the eyes. A highlighter can cover minor blemishes and circles but the texture is very light so isn't always suitable to help with problem areas.