mica
I’m fairly new to mica but love it. Although I can’t address the cosmetic ingrediant or CMC question hope the following helps: I have used it with Thompson’s Klyr Fire and a badger sprayer for a lovely, even coating. (You can use stencil for designs). I’ve also mixed it with Klyr Fire and coated fiber paper & blanket and used them as inclusions. I love that it stays the same color (unlike metals that change color/texture according to heat, thickness and reactions to other materials). Lemme know if you want more info and I’ll try to pitch in. 
