DIY Bath Bomb – So Easy!

Posted by Bonnie

Some time in the recent past, I wouldn’t have even blinked at the prospect of spending $5-$10 on something as simple as a bath bomb… I’m still guilty of making frivolous purchases despite my best efforts to cut our household costs down and only spend on essentials. This is especially true when it comes to our kids – I am my own worst nightmare, I can’t say no! What makes them happy makes me happy, and what makes big H happy is BUBBLES. Bubbles of all kinds. And don’t even THINK of giving her a bath without some form of bubbles – But I’m sorry, $5 per bath is too much for me in general, and now that I’m staying at home – forget it ($5 x 30 baths a month? $150.) Sure bubble bath is cheap and kids don’t need a bath bomb every time, but they are so much more fun than just regular bubbles!

A pink bath bomb and 3 other bath bombs still in their metal molds

And once I found out how easy it was to make them myself, well, I’m spending pennies on the dollar and the kiddo is happy as a clam.

There are so many different ways to make bath bombs but my favorite way is the easiest way. I’m not selling these, they aren’t meant as fancy gifts. I literally just want to see my kid smile and she’s not a fancy girl. BUT… You can very easily tweak this formula to make them as fancy as you like by adding fragrance (essential oils work great and are great for you), Epsom or Dead Sea salt, painting them with micas, using multiple colors or even fancy molds. I like to use multiple colors and use cake sprinkles which I place in the mold before packing the mixture inside. Hide a plastic toy inside for your child to find. They make fabulous stocking stuffers, teacher gifts – Whatever.six pink and purple bath bombs on a metal tray with small spherical candied sprinkles and heart shaped candied sprinkles applied to the top

Super Easy Basic Bath Bomb

  • 1 part citric acid (I used 1 cup)
  • 2 parts baking soda (I used 2 cups)
  • Coconut oil – Enough to moisten your dry ingredients (about 1/2 cup)
  • Colour, if you want (I used Lake colourants for the blue bombs but micas are my favourite. Food colouring could work but may leave a ring in your tub)
  • Fragrance, if you want (I didn’t use fragrance because the coconut oil is naturally fragrant but an essential oil with a calming effect like lavender would be great. I would use about 1/2 ounce for this amount)
  • Emulsifier* (An emulsifier prevents the coconut oil from separating and floating to the surface in your tub. You don’t have to use one if that doesn’t bother you)
  • Some kind of mold – and it could be anything. I used bath bomb molds and a muffin tin.

*You only need this if you’re using oils in your bombs. The classic way to make a bath bomb involves using witch hazel rather than coconut oil (which I have found is cheaper) – I just like the moisturizing qualities of the coconut oil. If you want some moisturizing but not as much as these provide just use a teaspoons of your favorite oil, and witch hazel in a spritz bottle. Cocount oil, bath bomb molds, colorants and citric acid on a counter-top in a kitchen


Melt the coconut oil over low heat. Measure your dry ingredients into a bowl and mix them well. Remove your oil from the heat and add your emulsifier and colouring. Add it slowly to your dry ingredients and mix it with a gloved hand – Don’t worry about using all your wet ingredients, just use enough to make a wet sandy like mixture. Pack your mixture into the mold. If using a bath bomb mold, use a bit of extra that will squeeze out between the two halves and ensure a good seal.

A hand in a purple glove holding mixed ingredients to make a bath bomb on a kitchen counter

Because coconut oil is solid at room temperature, these are ready to be unmolded in a matter of minutes. If you use witch hazel let the bombs sit for a few hours before unmolding or they may lose their shape. I suggest letting them sit unmolded for another 24 hours before use to really dry out. It can be a little tough to get the bombs out of the muffin tin sometimes but if you use a plastic knife and score around the edge, they come right out. a muffin tin filled with bath bomb and 4 bath bomb molds with grey bath bombs inside them

Make sure you store your bath bombs somewhere with low humidity (not in the bathroom…) or they may prematurely start to fizz. You could keep them in a container like a yogurt or margarine tub if you have one to protect them from moisture, or store them somewhere dry like a linen closet. This is a great project to get your kids involved with too!

a blue-grey bath bomb on a stone counter-top with a white backsplash





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