The fact that I'm testing "line fillers" bums me out (but that's a blog for a different day). However, the fact that I found one that seems to work cheers me up. So, it all evens out in the end.

I've been reading about products that purport to temporarily "fill" facial lines and because I, a) have some that need filling and, b) don't have the money, or wherewithal, to get syringes stuck into my face every couple of months, I decided to give a few a whirl.

I applied each of them onto my entire face as a makeup primer and judged them on how they felt and how well they camouflaged those darn crevices.

Here's what I tried... and what I think:

Test #1: Redpoint Age Minimizer Line Filler, $19: This felt very lightweight on my face (probably because unlike most, it doesn't contain silicone) and went on smoothly and, in turn, made my eye makeup go on like a dream and kept it from caking into the lines in my eyelids. It did not seem to fill in any lines but did make my face feel soft.

Overall Grade: 4 of 10 stars

Test #2: Renee Rouleau Instant Line Filler, $62.50: Like its injectible cousin, this product contains hyaluronic acid, here, in the form of "filling spheres." These clever little spheres bond together to fill out and "plump" up lines and, let me tell you, it really works. Of course, it only lasts till you wash your face but while it's on it's pretty cool. Plus, it felt good, not gloppy, going on and it does have vitamin C in it, which is supposed to be good for anti-aging.

Overall Grade: 7 of 10 stars

Test #3:MAC Prep + Prime Line Filler, $19.50: Despite the fact that this felt a little tacky when I was applying it, once on it was smooth, matte and really seemed to magically conceal most of my lines � especially the finer ones. Plus, it contains some ingredients ("Gatuline Expression" and Argireline) that a purported to boost skin's collagen production. We'll see.

Overall Grade: 8 of 10 stars

So, yes, MAC was the winner for me (surprising since I've avoided their counters and stores since becoming a "grown up") and, while I'm not blown away by how well it works, it does a good enough job and keeps my hopes bolstered that the next big thing is just right around the corner.

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