You Haven't Lived Until You've Tried Sephora's 15 Bestselling Foundations

What it is: Kat Von D Lock-It Foundation ($35)
Rating: 4 out of 5 stars
Shades available: 31
What shoppers are saying: "I love this stuff. It is very matte and provides more coverage than I need. I actually use a small amount of it mixed in with my moisturizer and it makes the bottle last forever! I just add more or less foundation depending on how much coverage I need." (via Sephora reviewer mrsmiller)