Aug 13,2022

What is a Bath Bomb?

Bath bombs, also known as bath fizzers, are dry ingredients that are designed to effervesce once in contact with warm water. Once it hits the water, it releases essential oils, scents, colors, and bubbles to elevate your bath experience. Bath bombs can help condition the skin and soothe sore muscles. Additionally, they may help detox and relax the body and mind.   The great thing about bath bombs is that they contain the precise amount of oils and bath salts that you would normally have to purchase separately. Not only does using bath fizzers speed up the bath time process, but they make the experience so much better.  

These ingredients are safe to use in the bath,but it’s important to note that bath bombs are inedible. We recommend this craft for children aged eight years or over.

Bath bomb recipe

Makes 4 half-balls

Prep 30 mins,plus 2-4 hrs setting

100g bicarbonate of soda

50g citric acid

25g cornflour

25g Epsom salt(optional)

2 tbsp oil–such as sunflower,coconut or olive oil

¼tsp essential oil,such as orange,lavender or chamomile

a few drops of liquid food colouring

orange peel,lavender or rose petals,to decorate(optional)

You will also need

mixing bowl


plastic moulds(see below for ideas)


1. Put the bicarbonate of soda,citric acid,cornflour and Epsom salt in a bowl,then whisk until fully combined.

2. Pour the base oil,essential oil and food colouring in a small bowl. Mix together well,combining the oil with the colouring as much as possible.

3. Very slowly add the oil mixture into the dry ingredients a little at a time,whisking between each addition. When all the oil is added,add a few tiny drops of water and whisk again(it will fizz when you add the water,so mix it in quickly). You’re looking for the mixture to slightly clump together when pressed in your hand and keep its shape–it shouldn’t be too wet.

4. If you’re adding peel or flower petals to decorate,drop them into the bottom of your chosen mould. Pack your mixture tightly on top,pressing down and smoothing out the top with a teaspoon.

5. Leave your bath bomb in the mould to dry for 2-4 hrs,then carefully remove it. It’s now ready to drop into the bath–watch it fizz away!

Top tips for making bath bombs

Be sure to use liquid food colouring,not gels. Gels will clump together when you add them to the bicarbonate and it’s hard to mix them in.

Once you’ve added the liquid to the mixture,you need to work quickly to mix everything together and push it into the mould as soon as you can.

To allow your bath bombs to dry,leave them uncovered in a cool,dry place(away from taps and humidity). They will take longer to set in humid weather.

If you’ve got more than one colour,why not make a rainbow bath bomb? Layer up the different colours and they will blend together beautifully.

Boymay is a bath bomb manufacturer specializing in the research, development and production of bath products such as natural bath bombs, shower steamers, bath salts, handmade soaps, hand soap effervescent tablets and bath gift sets.
We are located in Huizhou City, Guangdong Province, with convenient transportation. All our bath products meet international quality standards and are greatly appreciated in a variety of different markets around the world. The factory covers an area of 100 square meters and has more than 200 employees. The factory has passed the Sedex audit of GMPC, ISO22716 and SGS, well-equipped facilities and strict quality control throughout all stages of production, enable us to increase production capacity.

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