How to make epsom salt bath bombs

Bath bombs are a way to pamper yourself and can help you relax. Bath bombs contain a bicarbonate and acid mixture. When these ingredients become wet, they react with each other and fizz. Essential oils are added to provide a scent, and Epsom salts are added to help hydrate the skin. You can make your own bath bombs at home and give them as gifts to friends, neighbours and family members.

Combine 1/4 cup of citric acid, 2 1/2 cups of baking soda and 1 cup of Epsom salt in a bowl. Mix the ingredients together well.

Moisten the dry ingredients with your choice of fragrance oil. Add 5 to 10 drops of essential oil, but be careful not to oversaturate the mixture.

Place the witch hazel in a spray bottle. Spritz it over the bath bomb mixture and stir the mixture with your hand. When the ingredients stick together as you squeeze them, you can pack the mixture tightly into the moulds. Form the mixture quickly because it will harden.

Allow the bath bombs to sit in the moulds for three to five minutes. Tap them out carefully and allow them to air dry for four hours.

Wrap the bath bombs with cling film or store them in an airtight container to protect them from moisture.


Add a colourant designed for bath bombs. You can purchase these dry pigments at most craft stores. Pack the bath bombs into ice cube trays if you do not have a bath bomb mould.


Avoid adding too much witch hazel because the mixture will start to react and fizz.

Things You'll Need

  • 1/4 cup citric acid
  • 2 1/2 cups baking soda
  • 1 cup Epsom salt
  • Bowl
  • Essential oils
  • Witch hazel
  • Spray bottle
  • Bath bomb mould
  • Cling film or airtight containers
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About the Author

Angela LaFollette holds a Bachelor of Arts in advertising with a minor in political science from Marshall University. LaFollette found her passion for writing during an internship as a reporter for "The West Virginia Standard" in 2007. She has more than six years of writing experience and specializes in topics in garden and pets.