T TazHawk O.G. Apr 30, 2011 174 19 Feb 6, 2013 #1 Hi, I got the 'Urban Decay Brow Box' and 'Too faced Brow Envy' kits. I don't use brow powder so I was wondering if it is safe to use them as an eyeshadow instead. Is it safe for the eyes? Whats the difference between a brow powder and eyeshadow?