There are four main things to consider when taking your photos:
My camera was given to me as a gift two Christmases ago and I use it all the time, almost every day. I have a Canon EOS Rebel T1i, but you don't have to have a DSLR. A simple point n shoot will work just as fine if you know how to use it. Almost all cameras have a macro setting, which is very helpful with makeup photography because it lets you get really close to your subject without it getting blurry. For example you would want to use this setting when taking a picture of just your eye or just your lips.