Difference between bronzing and contouring

Contouring is all about creating dimension to your face. It's literally using color to shade your face and give the appearance of shadows. When something is darker/shadowed, it will appear to recede. You can use this illusion to make it seem as though your face is slimmer, more chiseled, etc, etc. Although you can use some similar products to bronze your face, this is a completely different concept. Bronzing up the face is all about looking like you've been in the sun. As though you've been sun-kissed and you're all bronzy and gloomy like mm Victoria's secret model 

                      if the product is matte it can be used as a bronzer and contouring powder.
But if it has shimmer only use as a bronzer.
Contouring powders are usually matte:) You also get smashbox kit as it has contour, bronzer and highlighter. You can use them depending to what look you want  
Contours are suppose to create shadow. You can't use shimmers. So for bronzers, you can use shimmers as bronzers are suppose to give the sun kissed effect. 
If not, hoola is best!