Avoid the dry powders that you were using when you were 20 years old! After the age of 30, your face needs more moisture to look nice. Products that will dry up your face almost always look heavier on your skin and rob your face of its natural radiance. Opt-in for a liquid foundation instead and just watch the results on your look.
And please don’t overdo it! You probably need less foundation than you think. I’d try to avoid medium or full coverage formulas if possible and go for something lighter, especially on the edges of your face.