The most common foundation iteration is liquid. Schultz says liquid foundation is best for oily/acne-prone skin, provided it’s oil-free, and he recommends looking for water in the first position of the ingredient list. If a lighter feel is your thing, Perry Romanowski suggests seeking out a silicone (like cyclomethicone), which makes liquid foundations seem to float on skin.
Cosmetic chemist Wilson says that liquid foundations blend most easily, because they’re like “paint.” But, it comes down to user preference. “Foundations that provide light coverage are best for buildable coverage,” she says. “Creams provide heavier coverage to begin with, so adding additional layers will create an artificial complexion.”