Ages 5+

Animal Bath Bombs


Dip your toes into bubbly bathtime chemistry! Use a press mold with two cute critter design disks to create unique bath bombs in a rainbow of colors. Then drop ‘em into water to see fizzy chemical reactions in action. (Included ingredients make 3–6 bath bombs. Make more with materials from home or the Bath Bomb Refill Set.)

Why it’s awesome

  1. Creative colors

    Mix up custom shades and create multi-color bath bombs.

  2. Fizzy, fun reactions

    Explore bathtime chemistry with citric acid and baking soda.

What’s included?

  • baking soda 4 oz (115 g)

  • citric acid 2 oz (58 g)

  • cornstarch 2 oz (58 g)

  • Epsom salt 2 oz (58 g)

  • oil 0.47 fl oz (14 ml)

  • 3 food colors

  • each 0.17 fl oz (5 ml)

  • spray bottle

  • 3 paper bowls

  • 2 design disks

  • mess mat

  • press

  • gloves

  • illustrated instruction booklet

Topics explored

  1. Chemical reactions

  2. Acids and bases

  3. Color-mixing

From the desk of the product designer:

Behind the design

Bath bombs provide so much bubbly, fizzy fun. Plus, adorable animal shapes paired with chemical reactions? We knew had a winner.

- KiwiCo Product Designer

By the numbers


Potential animals brainstormed


Bath bombs created in testing


Soothing bubble baths for "testing"



41 reviews

Customer images



    Fun to make



    Lots of fun!



    Directions addressed several potential problems in finishing this project. Following those directions made completion much easier. Fun activity that culminates in water play to see how it worked.



    My grandson loved making the bath bombs! Thanks for including the recipe for making even more!!!!



    My 7yo daughter was super excited to make these bath bombs. The directions were clear and she knew exactly what she needed to do. The only thing I helped with was mixing in the food coloring and giving the press enough pressure to form the bath bombs. She can’t wait to make more!



    I loved how easy it was to open all the ingredients and my daughters could just pour them in the bowl. They had some trouble with the mold press so I had to help them with that. Our first couple fell apart so it took some practice but they turned out great!

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