Unsure if it works
I've been using this for about 2 weeks, and I honestly can't tell you whether it aids or not. Perhaps I've noticed an extra half an hour, to an hour of longevity before I need to blot or powder, but that could be due to my primer or the foundation, or even the powder. Probably not something you *need* in your kit. It's not a bad spray, I just haven't noticed a substantial difference.
