I have been making personal use bath bombs for a while. I am looking to adding them to my line for craft shows. I have great micas already and have heard mixed review as to if they would work for bombs. Can I get your expert opinions?
Sorry I should have been more clear. I use the micas I. My cold process soaps. I have only been using the bombs personally so have just used them white. Would like to add color before I make them for my table.
The first time I made bath bombs I used mica to color mine a real light purple since I was using lavender EO. It seemed like I had to use more of the Mica then I really wanted to just to get the light purple color. Big mistake.... the mica made a ring in the bath tub and then the oils used made an even bigger mess. Now I only use the La Bomb colorants from BB or the bath bomb color powders from WSP and very little oil. I've seen other people use food coloring with good results.
I use micas to color mine, but as Val-11 stared, you have to be light handed. Don't expect to be able to get a rich color with micas unless you want to color the water and possibly the tub. I usually have pastel colored bath bombs.