A part of me hates concealer because the only area that I see “aging” over time is underneath my eyes as my fine lines multiply and become more prominent, and my under eye bags get darker and more noticeable. I like to test concealer in terms of covering up unevenness or blemishes on my skin as well as underneath my eyes, as I do find that the areas can require different types of concealer–there are some that multi-task but often I’ll want something a bit lighter under my eyes and something that matches my complexion more spot-on for the rest of my face.
I test concealer with and without foundation underneath it, with and without powder, and I try an assortment of powders — some more brightening/luminous ones along with more mattifying/typical translucent powders. I’ll test application using brushes, fingertips, and sponges. I want it to be relatively easy to apply with high coverage that doesn’t look or feel heavy/caked on, and it should give me at least half a day without getting all in my fine lines.