Generously apply after putting your foundation and everything else on, blush, bronzer, eye shadow and it will keep it from smudging all day! I have a bad habit of touching my face throughout the day but this keeps it from smudging off. I noticed a huge difference in how finished I look not just in the morning but also into the evening. It's very easy to apply. Dab a bunch all over your face, wait 2 minutes, then brush off the excess. It's pretty fun actually. It sets your make up so well to make it truly last longer.