How to Make Bath Bombs with Kids

DIY bath bomb at home!

My son loves to take a bath, especially soaking himself in the fizzy bathtub with a bath bomb. (I do too!) Fancy little guy! I found this excellent YouTube tutorial, and we tried!

What We Used

We watched this YouTube video. There were many bath bomb recipes and DIY videos out there, but I think her tutorial was the best—very clear instruction and easy to follow.


These are the ingredients she used in the video.


  • Baking Soda – 1/2 cup
  • Citric acid – 1/4 cup
  • Cornstarch – 1/4 cup
  • Epsom Salt – 1/4 cup
  • Castor Oil (or any vegetable oil) – 3 tsp
  • Essential Oil for scent – 1 tsp
  • Soap Coloring or Food Coloring
  • Water 1 tbs (this amount can vary slightly depending on the humidity level where you live)
  • Soap Molds (We used metal one and also plastic Easter eggs)

Step by Step

Epsom salt - How to Make Bath Bombs with Kids

Put all dry ingredients. Our baking soda was very crumbly, so we shifted them to make it fine. Since we handled citric acid, we covered our eyes with safety glasses. Just in case.

Mix all ingredients together - How to Make Bath Bombs with Kids

All together.

Coloring and add lavender scent - How to Make Bath Bombs with Kids

We decided to make it green with a lavender scent. Mmmm, smells so good!

Mixing How to Make Bath Bombs with Kids

Finally, the mixing part was done.

Using mold and making shapes How to Make Bath Bombs with Kids

Molding time. We made a ball shape with soap mold and also egg shape with my son’s plastic Easter eggs.

DIY bath bomb at home

We didn’t wait long enough (We got too excited!), but it came out very nice. We LOVED these DIY bath bombs!

Happy learning!

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