MARBLERS Mica Powder [Stardust Pearl] 3oz (85g) | Cosmetic Grade | Epoxy Resin Pigment | Dye | Non-Toxic, Vegan, Cruelty-Free | Lip Gloss, Nail Art | Slime, Bath Bomb, Candle & Soap Making

Doesn’t matter how much of any SLS or whatever I add to my bath bombs, these always, always leave a ring which is quite difficult to remove. After trying many recipes I’m done, it's a pretty shade but it’s going in the trash.