I love this stuff, but it does not love me back. It adds such a magical glow to the skin, even under totally matte foundation. I believe it also helps extend the time before my foundation starts to break apart. However, I think this is what is causing me to have painful cystic acne spots. I used to use it as a primer and loved it, but now I only use it as intense highlight so it won't break me out. If this formula doesn't break you out, I would say it's a must!