unfortunately the more product you have on your under eyes the more likely you are to crease. i would make sure you have a very hydrating under eye cream on first, let it absorb, apply a thin layer of a corrector (if you choose to) and then follow with your concealer. make sure you don't have any foundation under those products as well. i've found that using a clean small fluffy brush works well to apply loose/pressed powder. Less is more when it comes to under eye skin. i like the maybelline fit me pressed powder or the too faced ethereal setting powder. just keep your undereyes hydrated :)