As a beauty blogger who specializes in reviewing makeup, I think I have probably tested hundreds of foundations over my 13+ years of beauty blogging. Not to mention all of the years of simply wearing makeup and trial and error of finding what foundation works and what doesn't. I am very particular when it comes to foundation. A great foundation needs to offer buildable coverage that works for everyone (not everyone needs full coverage and most foundations can be built up for full coverage), doesn't settle into pores or fine lines, wears well on a variety of skin types and lasts all day. A good foundation will also come in a nice selection of shades to match a large variety of skin tones. In my years of testing. I have definitely come across my favorites and narrowing them down was actually pretty easy because there are very few great foundations that meet all of my high expectations; these do.