I've not heard of this before. I was given a sample and tried it. My skin is very dry. I use balm cleansers and balm moisturisers, so, super dry skin. The reviews I've read talk about warming and tingling sensations and I didn't experience this. I even put an extra amount around my eyes, nose and upper lip. It soaked right it within a couple of minutes, so if it's meant to be a mask there really isn't anything to remove as such. It didn't leave my skin feeling tight, the way flash beauty balm does. It's feels moisturised. I just feel like I'm getting a different experience of it to the very few reviews I've read. The thing I really noticed is that it's left my skin feeling smooth, like a primer, and I'm wondering about whether it could be used for this. It's expensive and I don't want to shell out for a pointless product. Anyone here used this, either at all or as a primer?