Q: I have thin lashes, but with so many mascaras available, how do I know what's right for me?

A: All mascaras coat lashes, making them look thicker and longer, but there's more to them than meets the eye. Brush design is an important factor in getting a desired look, according to Collier Strong, a Los Angeles-based makeup artist. Since your lashes are thin, you need a volumizing mascara like Prescriptives False Eyelashes ($16.50; at department stores). The bristles on these brushes sit close together, allowing them to deposit more product on the lashes, making them look longer and fuller.

Those who have short lashes should opt for lengthening mascara. Arranged farther apart, these mascaras' bristles separate and elongate lashes. (Try Clinique Long Pretty Lashes Mascara, $12.50; And for those with stick-straight lashes, mascaras that are designed to curl lashes are the best alternative. (Try Lancôme Amplicils Panoramic Volume Mascara, $19.50;; and L'Oréal Lash Architect 3-D Dramatic Mascara, $8; at drugstores.)

For all-purpose lash beautifying, try Revlon High Dimension Mascara ($7.50; at drugstores), which deposits light-reflective particles on lashes, creating a "glint." Another option is Maybelline Lash Discovery ($6.80; at drugstores), which sports a "mini" brush for easy application on the lower lashes. And for those with dry lashes, try Aveda Mosscara ($14;, which, while adding length and volume, moisturizes lashes with Icelandic moss (the same ingredient in Aveda's Sap Moss Shampoo).

When applying mascara, always wipe excess product from the brush with tissue and run a lash comb through lashes to get rid of clumps.