In a large bowl, combine baking soda, citric acid, epsom salt, and kaolin clay. Mix ingredients thoroughly. Be sure to break down any clumps. I find it easiest to sift the ingredients.
After the dry ingredients are thoroughly mixed, add in sunflower oil, fragrance oil, and polysorbate 80 and mix with whisk or by hand.
In the same bowl, slowly pour in witch hazel and mix with whisk while pouring. The mixture will begin to slowly bubble/activate but mixing while pouring will minimize this.
Add mica to the mixture and mix until it can be firmly squeezed and hold together.
Pack the mixture into the mold. If your bath bomb mixture starts to dry out, spray witch hazel and mix.
Let bath bombs sit in mold for 24-48 hours then remove.
In order to create paint for the bath bombs, mix a few drops of 91% isopropyl alcohol with a pinch of mica and stir until smooth and paint on with a thin paint brush. Please see the link section down below for all micas used.
Sunflower oil can be substituted for grapeseed oil, sweet almond oil, safflower oil, or your favorite liquid carrier oil.
Bath bombs are best packaged in shrink wrap or stored in an airtight container.
In this recipe, polysorbate 80 is used to help prevent mica from forming a color ring around the tub.
To use bath bombs, add one to warm bath water and enjoy!
I used a mixture of these micas from Mad Micas to create the color for these bath bombs: Koi, King Tut, and Sexy Stranger On A Train Brown Mica.
This recipe makes 4 gingerbread man bath bombs.
Gingerbread Man Mold - https://amzn.to/3GHqjFX
Witch Hazel - https://amzn.to/3v01PVW
Polysorbate 80 - https://amzn.to/3RES4Fw
Sexy Stranger On A Train Brown Mica - https://www.madmicas.com/products/sexy-stranger-on-a-train-mica?_pos=1&_sid=d6f05a783&_ss=r