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Hard Bath Bomb in Cavity Mold

Updated: Jul 8, 2023


Ingredients

  • 280g Baking Soda

  • 145g Citric Acid

  • 40g Epsom Salt

  • 10g Kaolin Clay

  • 2.5 tsp Sunflower Oil

  • 1 tsp Witch Hazel

  • 0.25 tsp Fragrance Oil

  • 0.25 tsp Polysorbate 80

  • 0.25 tsp Mica



Directions

  1. In a large bowl, combine baking soda, citric acid, Epsom salt, kaolin clay, and mica. Mix ingredients thoroughly. Be sure to break down any clumps. I find it easiest to sift the ingredients.

  2. In separate container, mix sunflower oil, witch hazel, fragrance oil, and polysorbate 80.

  3. Slowly pour liquid mixture into dry mixture and mix until it can be firmly squeezed and hold together.

  4. Pack mixture into mold. If your bath bomb mixture starts to dry out, spray witch hazel and mix.

  5. Let bath bombs sit in mold for 24-48 hours then remove.

Notes

  • Sunflower oil can be substituted for grapeseed oil, sweet almond oil, safflower oil, or your favorite carrier oil.

  • Other salts can be tested in place of Epsom salt.

  • In this recipe, polysorbate 80 is used to prevent mica and clay from forming color ring around tub.

  • To use bath bomb, add one to warm bath water and enjoy!

  • Instead of mixing liquid ingredients in a separate container, we can add them directly to dry mix but be sure to add witch hazel slowly and stir with whisk at the same time





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