Then I realised, of course! It's because they're probably not setting it with powder! A little bit of digging around and asking my (blogger and non-blogger) friends confirmed my suspicions, that not everybody uses a face powder every single time to set their foundation.
As for me, ever since I started wearing foundation (and that's a long time!), I have always, always, set my makeup with some kind of powder afterwards. I have fairly dry skin so it's not as if my makeup will slide off my skin, but I just prefer the smooth finish that a powder gives, not to mention the longevity.
Here are the ones I've got currently in rotation, clockwise from left:
Sabaya powder foundation #05 - This is a UAE brand which I picked up from Dubai a couple of years ago. It's actually quite heavy (it's meant to be worn without a foundation), so I only use it on special occasions or when my skin is looking particularly cr*p and I want to hide all blemishes.
L'Oreal BB Powder in Light - this is really nice and lightweight, I don't take any notice of the BB claims on it, but it sets my makeup beautifully. The colour is too light for me at the moment so I'm saving it for winter.
MAC Mineralize Skinfinish Natural in Medium - As you can tell from the pan I use this a lot. In fact I have about 6 empty cases of these in my draw waiting to be Back 2 MAC -ed. It really doesn't look or feel like I have any powder on my skin, as the finish is really natural. But it does help prolong the longevity of my foundation.
Maybelline 24hr Super Stay powder in Sand - This is probably my HG powder. I'm never without one and use it almost every day. Forget the 24hr claim, but this definitely does make my foundation last all day.
Do you powder your face each time you use a foundation? Any favourite finishing powders?