This is one of my wife's favorite makeup powder product stuff. I don't know why she puts this on after putting on that liquid foundation stuff or why other women do it for that matter, but she says it helps to keep her makeup in place throughout the day and keep the oil in control.
My wife currently uses this on her eyebrows to keep the hairs in place through out the day and she loves it! It works great on her eye lashes, but she prefers to use it on her eye brows instead and a bonus, it's very very affordable. She continues to buy it again.
My wife tried this out a few years back in high hopes this one would actually work, given that the name of this product is Physicians Formula and it's a bit pricey. She was highly dissappointed in this because just like all the other products she's tried, it didn't work.