One of the biggest developments in makeup over the last few years is the popularity of primer. Think of primers as a base coat for "painting" your skin: They help makeup go on smoothly and last longer.

On that note, I've just picked up Laura Geller Spackle Trio ($30). It contains three primers — one each for face, lips, and eyes — in one container. Having everything packaged together makes a lot of sense, especially for people who travel frequently. Unfortunately, not every part of this product is worth packing.

Earlier this year, Whiplashgirlchild reviewed Spackle for the face. Her review praises the product for reducing the appearance of pores and helping makeup glide on evenly. I agree; it creates a very smooth canvas on which to put foundation. But I also agree with her other opinion: It's a good product, but there are less-expensive options that work nearly as well.

To find out which Spackle product worked well and which was a stinker, read more

I tested the eye Spackle twice, using light and dark shadows. The primer goes on as a beigey white, which provided a good base for the deep colors of the Nars Blade Runner duo. The colors blended well and stayed on well, too. Today, I repeated the process using True shadow in Rosewood (a dark mauve); Benefit Silky Matte shadow in Low Profile, a neutral cream; and finally, Stila Kitten. Because of the white base, the colors looked a lot lighter than usual. It isn't a bad thing, but I definitely had a different look.

Eye Spackle does provide a better base and helps the shadow last longer, and it mostly gets the thumbs-up. But it would be ten times better if it were clear. What are women of color supposed to do with this stuff, for instance?

Take a pass on Lip Spackle completely. I've tried making this stuff work, but it just doesn't do anything but change the color of my lipstick. It goes on beige (effectively erasing my lips) and even after letting it sit for a few minutes, I find that it still mixes with my lipstick too much. Red becomes pink; pink becomes that creepy, dead-ish noncolor. I just couldn't make it work.

Individually, the face Spackle is a four-star product; the eye Spackle is a three-star product, and the lip Spackle is a no-star product. If you're dying to try all three, this product might work for you, but I'd test it out in Sephora first — before you drop the $30.

See reader reviews of this product and add your own here!