How to make Bath Bombs

There is nothing like taking a long soak after a hard day, and bath bombs make it even more relaxing. This basic recipe shows you how it is done, but the varieties you can make are endless.


Depending on how many you want to make will depend on how much you need to scale the below recipe by – the one below is for about 12 bath bombs.

  • 500g Baking Soda (Bicarbonate of Soda)
  • 250g Citric Acid
  • 250g Epsom Salt
  • 250g Corn Starch
  • 2.5 Tbsp Coconut Oil
  • 1 Tbsp Water
  • 2 Tsp essential oil/scent oil
  • 4-6 drops of coloring (you can use food coloring but most suppliers do sell coloring specific for making beauty products)
  • Flower petals or biodegradable glitter (optional)
  • Don’t forget you will need some sort of molds to shape the bath bombs – silicone are best


  1. Mix the dry ingredients first. Use a whisk to ensure there are no clumps.
  2. Mix the wet ingredients separately.
  3. SLOWLY – the key word is SLOWLY add the wet ingredients to the dry, in fact add teaspoon by teaspoon.
  4. You’re looking for the mixture to be slightly clumpy when squeezed together and keep it’s shape. It mustn’t be too wet. 
  5. If you’re adding peels or flowers to decorate, drop them into the bottom of your mold. 
  6. Pack the mixture tightly into the mold, press down and smooth the top with a spoon or knife.
  7. Leave your bomb to dry overnight before unmolding.

PLEASE NOTE: Aromatherapy is a complementary therapy. It does not provide a cure for diseases, rashes or illnesses, but it can support conventional treatment of various conditions.

We are not medical doctors and if you are currently on any sort of medication or treatment prescribed by your medical practitioner, please check with them first before attempting any of the therapies or treatments suggested in this course.

If you are pregnant or breastfeeding, please check with your medical practitioner before using any of the essential oil blends suggested here, as some are not suitable to be used during pregnancy or whilst breastfeeding.

The suggestions and remedies on this website are recommended with adults in mind and may not be suitable for young children as their senses, and skins are very sensitive and can cause allergic reactions.

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