I'm starting to wonder this. Every foundation I use, however good, eventually turns orange. I've read that this is because it oxidises in the air. So even if it's the perfect shade in the morning, I'll always get a faint orange on it by later in the day, and the older the bottle gets, the more the shade changes.
I have good skin. I'm 38 but no wrinkles or lines (Botox takes care of the 11s). Well, some super light ones around/under my eyes but not enough to bother me. Never had an acne problem. I do have dark circles and a couple of minor blemishes but concealer/highlighter sorts them out fine and doesn't go orange.
Do I really need to use foundation at all? I use primer and setting spray to prepare my skin and help keep my makeup fast. Thinking of trying tinted moisturiser.