Bath Bombs for Kids: Safe and Easy Recipe to Make at Home

Do you want to know how to make bath bombs for kids? Use this step by step guide to make cute and fun bath bombs for children in different colours and fun shapes!

Bath bombs are inexpensive to make on your own and also lots of fun! If you are making bath bombs for kids there are loads of different molds to choose from. You can also hide little toys or trinkets inside them to make bath time more fun!

As well as being cheaper than buying them from a shop, the best part about making your own bath bombs is you know where all of the ingredients come from! I make sure that my ingredients are ethically sourced and don’t contain any harsh chemicals.

This DIY bath bomb recipe for kids is easy to make at home! Once you have made your bath bombs they will keep for around six months.

This post is all about how to make bath bombs for kids

Bath Bombs for Kids

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Ingredients for Your Bath Bombs

The ingredients below are all the basics you will need to make your homemade bath bombs.

Once you have practiced making the bath bombs a few times you can experiment by adding a few other natural ingredients to your bath bomb mixture such as sea salt, grapeseed oil, olive oil, melted coconut oil and shea butter.

These other optional ingredients can all help to create a relaxing bath experience and may assist with certain skin conditions such as eczema.

You may also wish to use essential oil or fragrance in your bath bombs but this is optional. There are some great options available that are gentle on a child’s skin. My favourite is the lavender essential oil by Fuse which is available on Amazon.

Directions to Make Your Bath Bombs

1. Combine the Ingredients

Pour the the citric acid, Epsom salt and baking soda into a large bowl and stir. Make sure all the dry ingredients are mixed well together. At this stage the ingredients are all in a powder as shown in the photograph below.

2. Mix in the Colorant and Fragrance

The next stage is to add a few drops of the colorant and if you wish some essential oil or fragrance. Combine the dry mixture using your hands. Please note that the oil and colorant will cause the mixture to clump together, but it shouldn’t start to fizz.

If you want to add some essential oils that are safe for children this lavender oil is suitable for sensitive skin. Lavender essential oil is great for creating a soothing bath. Add 15 drops of the oil to the dry ingredients.

Tip: Make sure you use a bath bomb colorant and not food coloring as food coloring could stain your bathtub!

3. Spray the Witch Hazel into the Mixture

Add the witch hazel to the spray bottle and slowly spray the mixture while at the same time mixing it with your hands. You need to get the mixture to be moist enough to form into the molds, but not wet enough to start fizzing.

4. Pack the Mixture into Your Chosen Mold

As you spray the witch hazel onto the mixture you will feel it start to stick together. When this happens start to pack the mixture into the mold. If you want to make your DIY bath bombs into fun shapes you can find a selection of bath bomb mold ideas for children below!

If you want to put surprise toys inside your bath bombs this is the time to put them into the mold along with your ingredients. A small toy inside your homemade bath bombs makes bath time fun!

5. Leave Overnight to Dry

Leave the mixture inside the mold overnight to dry and then gently remove the bath bomb from the mold.

6. Final Result

Choosing Your Bath Bomb Mold

The bath bomb molds below are all perfect for making children’s bath bombs. If you don’t have time to order a mold, a simple ice cube tray would also do!

Christmas Bath Bomb Mold for Kids

Create Christmas Bath Bombs with this Christmas mold which includes a christmas tree shape, stocking shape, santa shape, and other festive choices!

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Boys Bath Bombs

Create boys bath bombs with different robot shapes, spaceships and astronauts.

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Bath Bombs with Rings

If you want to make the more recognisable bath bombs with rings these molds will do that and come in many different sizes.

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Unicorn Mold

Create Unicorn Bath Bombs with these unicorn heads.

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Unicorn Poo Bath Bombs

If you want to create unicorn poo bath bombs you can use this mold and mix in a variety of different colours.

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Halloween Mold

To make halloween bath bombs use this mold to create a bat shape, pumpkin, ghost or skull.

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Bath Bombs with Toys Inside

If you want to create bath bombs with little toys inside you can use the kit below. It comes with little toys and trinkets inside the box.

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Dinosaur Mold

If you want to make dinosaur bath bombs there are a variety of different dinosaur molds here to choose from. Just make sure you pack the ingredients into the mold well to pick up the detail.

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Cake Bath Bombs

There are a variety of different cake shaped bath bomb molds available on Amazon. Here are some donut shaped ones.

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Disney Bath Bombs

If you want to make some Disney themed bath bombs for kids you could try these Mickey Mouse shaped molds.

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Harry Potter Bath Bombs

If your child is a Harry Potter fan you could try making Harry Potter Bath Bombs using this mold. The mold is designed to make chocolates but it would work just as well for bath bombs.

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Easter Bath Bombs for Kids

If you want to make Easter Bath Bombs for kids, these easter egg shaped molds would work well!

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Valentines Bath Bombs

On Valentine’s Day you can use these heart shaped molds to make some Valentines Bath Bombs.

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How to Use Your Bath Bombs

Once you have made your bath bombs simply run a bath of warm water and drop your bath bomb in. Make sure to fill the bath before putting the bath bomb in to ensure it dissolves properly.

As bath bombs can irritate the skin if used too often, I would recommend to not using them more than once a week.

What Makes Bath Bombs Fizz?

The sodium bicarbonate (baking soda) and citric acid in your bath bomb create a chemical reaction when you put it in your bath water. It starts to make carbon dioxide which is what causes the fizzing reaction.

Bath Bomb Kit for Kids

If you want to make kids bath bombs at home you can buy kits which contain everything you need! The 3 kits below are perfect for making the best bath bombs for kids.

1. So Bomb DIY Factory

This DIY bath bomb factory contains all the supplies to make six bath bombs for kids in 30 minutes.

Simply mix the brightly coloured powder with the glittery powder, and then add the decorative sprinkles to the mould. It also includes a small toy to put inside your bath bomb.

Last update on 2025-07-03 / Affiliate links / Images from Amazon Product Advertising API

2. Make Your Own Surprise Scented Magical Bath Bombs

This kit allows you to make up to 15 scented bath bombs. It contains five kid-friendly scents and 10 mica powders to create either single or multi-colored bath bombs. Mica powder is sparkly, like a very fine glitter. It therefore gives the bath bomb a metallic, shimmery or pearl-like effect.

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3. Bath Bomb Bakery

With the bath bomb bakery you can make your own cup cake bath bombs. This kit would suit older kids and make a good gift. It makes three bath bombs either in the shape of a cup cake or donut. The pack includes scented bicarbonate of soda, citric acid, sprinkles and the molds!

Last update on 2025-07-03 / Affiliate links / Images from Amazon Product Advertising API

4. Make Your Own Unicorn Bath Bomb

This fun activity set contains the bath bomb molds, unicorn figures, 2 scents, body glitter, citric acid, 3 coloured powders, baking soda and 2 gift wraps. It allows children to create surprise bath bombs with tiny unicorns inside and makes bedtime baths more fun.

Last update on 2025-07-03 / Affiliate links / Images from Amazon Product Advertising API

5. Perfumed Bath Bomb Factory

This bath bomb factory would make a great gift and is a good way to inspire budding chemists while keeping children entertained! It contains everything you need to make bath bombs in different colors, including a small bowl.

Last update on 2025-07-03 / Affiliate links / Images from Amazon Product Advertising API

FAQs on Children’s Bath Bombs

Are bath bombs safe for kids?

Generally bath bombs are considered safe for kids 3 years and older.

Can a child take an Epsom salt bath?

Yes, Epsom salt baths are relatively safe for children

How long do bath bombs last?

The average shelf life of a bath bombs is around six months

How many bath bombs go in a bath?

It depends on the size of the bath but I would recommend no more than two in a regular sized bath tub.

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This Post was All About How to Make Bath Bombs for Kids