I love Benefit's Boing, and I needed something between a primer and a tinted moisturizer, so I thought this would fit the bill. The color is pretty, but disappears when you put it on, leaving no coverage or healthy glow. And it feels greasy and smells weird. Under makeup, it's OK, but no better than any other primer.
Maybe it works better on younger skin (I'm 38). I'm using a tinted moisturizer now and my skin looks much better without any makeup.

I received this face primer in a kit. Unfortunately, it's pink ... yes, pink. If you have redness, it only makes it worse, requiring application of more primer, foundation, or both. It only primes your face for more product than necessary. URGH!

At last a product that actually does what it's advertised to do! I first tried "That Gal" in the Benefit To Go Beauty Bestsellers, & ever since I've been hooked! It goes on smoothly, is light & non-greasy, and as a little bonus it has a nice, light scent. Before trying it, my skin always looked dull & sallow so I would rarely leave the house without foundation, but That Gal really does brighten my complexion enough that I now often wear just the primer. I also have sensitive skin, but this hasn't given me any problems as far as irritation or breakouts. I've also tried Smashbox Photo Finish primer, which feels good going on but really did nothing to brighten my face.

The only downside is the cost, but it's just one of those things I choose to splurge on. I've found the most economical way to "stock up" is to buy in little kits when available, because the "full size" hard tube by itself is only 0.37oz for ~$28, & in kits such as the "Benefit To Go Bestsellers"(a GREAT deal @only $10!) or "Confessions of a Concealaholic" (~$36) you get a 0.25oz tube, along with minis of other products.