Get illuminated - L'Oreal Lumi Magique Base, Pure Light Primer

If I'm completely honest, it was 3 for 2 in Boots and I was running out of time to look for a primer to fit the bill for Affordable April, so reached for the +L'Oreal Paris UK & Ireland Lumi Magique and finally headed to the till.  Not the proper way to do this I know but time was against me and the hairdressers was calling!

What pulled me to this primer in particular at a first glance, simple, the bottle.  Being a pearlescent white I was under the impression that it would act as an illuminator, giving me that dewy complexion, but is that exactly what happened?