It's a pale pink in colour, with a faint iridescent shimmer to it. The shimmer is subtle, like the foundation, and to be honest I don't notice it when it's under foundation. The formula is quite 'liquidy' compared to most primers I've tried, is really easy to blend, and has a slightly chalky feeling when it's applied. This isn't a bad thing though, and I think it's what makes it more of a matt finish.
I like it. My makeup stays put, I don't get too oily, it smells nice, it's not shimmery on the skin. Basically it's everything you'd want from a primer. You get 27ml of product which I think is a fair amount for such a thin consistency, as a little goes a long way. Hard to say if I'd re-purchase this again as I could probably quite happily go without primer in my daily makeup routine, but this has impressed me!
Has anyone else tried this primer?