A new holy grail in my books. I struggle with creasing concealer, and I think the MAC Prep + Prime Vibrancy Eye Primer ($30 USD / $36.50 CDN) is my answer to fixing that. Not only does it help to de-puff and soothe tired eyes, but this primer helps hold your concealer and eyeshadow in place all day! When I first started using it, it burned my eyes a little bit…but after about a week or so my eyes got used to it and don’t do so anymore. Check out the full review here!