• In a medium sized bowl mix the baking soda, cornstarch, citric acid and Epsom salts.
• Add in the almond oil and essential oil and mix through.
• Add the water slowly. I use a spritzer bottle to do this, as you don't want the mixture to start fizzing too much as this is what you want it to do in the bath. If you want to add a natural colour, oatmeal or flower petals, now is the time.
• Mix with your hands or a metal spoon until it resembles wet sand and easily clumps together in your hands.
• Pack the mixture into your molds. For these calming lavender bombs, I used a round bath bomb mold, so I pressed the mixture in to the bottom half of the old, then the top half and then pressed the molds together. For this mold, I let them sit for a couple of minutes until they were dry and then took the mold off and let them dry completely on a piece of paper towel.
• If you are using a silicon mold, leave in the mold for about 24 hours until completely dry before popping the bath bombs out.

To Use: Drop into a warm bath and relax!