Why does mineral make-up turn colors throughout the day?

I put it on at like 10 am and it's the perfect color and then like 3-4 hr later its darker? I don't put a lot on and I use a kabuki brush what should I do?

When you put on makeup in the morning it has not sunken into your pours yet. By 3 or 4 hours through the sun or wind your makeup is in your skin and appears darker. I suggest trying mixnig your mineral make up with cream or even if it is a very dense powder appy cream to your face after this will help your makeup look and appear ligther and not become dark. Also it could actually be the manufactors and how the makeup is made I use I.d bareminerals it's really good and is a very good natural makeup

Bare minerals I.d. is the best. It stays on, is good for your skin and doesn't change color.

Yeah I was wonderin if it really worked. I'll have to order some. Right now I'm using Loreal Paris bare naturale.I also bought the finishing mineral powder but it doesn't help.It then makes the make up too light.