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DIY bath bombs -- great gift idea! |

Today is my birthday and I had two plans for treating myself: making bath bombs and working on my blog. Two days ago I bought the materials for bath bombs, but lacked the time to work on them. Yesterday my mother, sister, and niece came over for my birthday and guess what they surprised me with? A Bath Bomb DIY Party!! I kid you not — somehow, they just knew what I’d like. And I took tons of photos to share with you here. This was the best birthday adult party idea ever! So you’ll find two different DIY bath bomb recipes here (one with citric acid and one without) along with ways to create your own bath bomb makes from unusual things.

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Funny story — my sister couldn’t find bath bomb molds, so she brought tennis balls to use instead! Greg cut them in half and we turned tennis balls into DIY bath bomb molds!

Bath Bomb DIY recipes and tutorial |
This tennis ball became a mold for our bath bombs!

Bath Bomb DIY -- Great for holiday gifts or even a party! |
Traditional bath bombs in fun colors, smells, and textures!

What is a Bath Bomb?

A bath bomb is something you can put into your bath to make it fizzy and smell great. Bath bombs are hard-parked balls, tablets, and other shapes that contain substances that effervesce when they get wet. Some people also call these bath fizzles. They were popularized by LUSH Cosmetics — I bought my first bath bomb at the LUSH store in Disney Springs at Walt Disney World many years ago.

Let’s make some bath bombs! This post contains some affiliate links for your convenience (which means if you make a purchase after clicking a link I will earn a small commission but it won’t cost you a penny more)! Read my full disclosure policy.

Bath Bomb DIY Materials

Here’s what you’ll need to make bath bombs. 

Bath Bomb DIY Recipes

We found two ways to make bath bombs—one with citric acid, and one without. I will share both with you here as it can be hard to find citric acid (my sister found it in the canning section of her local Wal-Mart).

Bath Bomb DIY Recipe + Tutorial (Party or Holiday Gift!)

Prep Time: 5 hours

Yield: Makes 1 large bath bomb, or two small bath bombs

Serving Size: 1-2

Bath Bomb DIY Recipe + Tutorial (Party or Holiday Gift!)


  • 1/4 C. Baking Soda
  • 1/8 C. Epsom Salt
  • 1/8 C. Cornstarch
  • 1/8 C. Citric Acid
  • 1 1/2 teaspoons coconut oil (melted to a liquid) or vegetable oil
  • 15-20 drops of your favorite essential oil(s)
  • 1 teaspoon of water
  • Gel food coloring as needed


  1. Put the dry ingredients in a large bowl and whisk together. In a separate bowl, mix the wet ingredients. (Note: If you don't have gel food coloring, you can use the regular food coloring but reduce the water by half.) Scatter the wet ingredients slowly around the top of the dry ingredients and stir quickly to avoid activating too much of the citric acid. If you get too much fizzing, add the wet ingredients more slowly. Stir until everything is mixed. Now spoon into your mold and allow to sit for at least an hour (or pop in the freezer for at least 15 minutes). Wait 24 hours before first use. Store in an airtight container.

Bath Bomb DIY Recipe without Citric Acid

To make a bath bomb without citric acid, simply use 1 Tablespoon of Cream of Tartar in places of the 1/8 cup of Citric Acid in the recipe above. Otherwise, everything else is the same

Bath Bomb DIY recipes and tutorial |
Mixing the dry ingredients

Bath Bomb DIY Notes & Tips

We used both regular food coloring and gel food coloring, and we noticed a big difference between them. The bath bombs with regular. liquid-based food coloring puffed up too much, dried too slowly, and, in some cases, seem to activate the citric acid long after we put them into the mold. Thus, we found that if you use regular food coloring, decrease the amount of water to 1/2 teaspoon (or possibly even no water if you use a lot of liquid-based food coloring).

Experiment with putting different things in your bath bombs. We added dried flowers to great effect! We also tried hiding wiggly worms and little rubber duckies inside the bath bombs while we were molding them.

Bath Bomb DIY with dried flowers — get the recipes and tutorial! |
A bath bomb with a dried flower — isn’t it pretty? (This shape was made in a plastic mixing cup!)

Bath Bomb DIY Party

We had the BEST time making bath bombs. We made a variety of bath bomb styles, shapes, and smells. It was a blast. If you’re thinking about a bath bomb diy party, you’ll want to bring enough supplies and fun stuff for everyone. See my tutorial below for ideas. We found it worked best to make up a huge batch of the dry ingredients for everyone to scoop from, and then add the wet ingredients. Be sure to allow enough time for the bath bombs to dry, or use molds that your partygoers can take home.

Bath Bomb DIY Birthday Party! Get the recipes and tutorial. |
My bath bomb diy birthday party!

Bath Bomb DIY Molds

Bath bombs are traditionally in a ball shape. My sister checked the craft stores for those clear plastic ornaments that come apart, but no one was stocking them. So what did she do? She bought tennis balls and Greg cut them in half with a bread knife! Genius! They worked perfectly, too.

Bath Bomb DIY recipes and tutorial |

Other things we used for molds were just things we found around the house, such as:

The donut molds produced adorable donut-shaped bath bombs. The funny thing is we didn’t even have a donut mold until Alexa took a break from making bath bombs to go out to a yard sale with Greg. And there they found — you guessed it — a donut mold! Great timing!

Bath Bomb DIY recipes and tutorial |

I got a frosted look to the “donut” by putting a different color of bath bomb mix in the very bottom, then filling up the mold with the donut-colored mix!

DIY Bath Bomb Tutorial |

Here are all the bath bombs we made yesterday!

Bath Bomb DIY Tutorial |
A wide array of different sizes and shapes of bath bombs!

Bath Bomb DIY Step-by-Step Tutorial

Bath Bomb DIY Tutorial |

While we were making these we kept having to check our iPhones and iPads with messy hands. It occurred to me we should have printed out the steps, so I made a downloadable PDF with the bath bomb recipe, materials, and step-by-step directions. Download and print it out to take with you to the store, or give one to everyone at your own bath bomb DIY party!

To get my free printable bath bomb recipe and instructions (Design #5), simply download it from my resource library (you can get the password when you subscribe to my site (also free)! There’s a signup form at the very bottom of this page.

Please let me know if you have any questions!


P.S. Check out my other fun DIY gift tutorials to help you make wonderful homemade and inexpensive gifts! I currently have tutorials on DIY teacup candlesDIY Sharpie mugsDIY hand warmersDIY “gold-dipped” crystal necklaceDIY bath bombs, DIY map pillow, and DIY sweater hats, scarves, and gloves!

Like this tutorial? Pin this bath bomb recipe to your favorite Pinterest board!

 Easy bath bomb DIY, including a recipe without citric acid! Homemade bath bombs make great #Christmas gifts! Get our recipes for fun aromatherapy bombs with lavendar, even some donut shaped bath bombs!  Make your own bath bombs in all sorts of shapes! | Easy bath bombs! Learn how to make homemade bath bombs with our recipes with and without citric acid. These make great #christmas gifts!

Bath Bomb DIY Tutorial |
Bath Bomb DIY Tutorial -- Learn to make your own bath bombs! |

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    1. Aw, thanks, Tami! The donut-shaped ones came out great, especially when you consider we didn’t plan to make them that way in advance.

    1. No need to have a party — just make some on your own! I’m sure your husband would love them. I tried one of mine a couple of nights ago and it was divine!

  1. These are so fun!! I DIY just about everything in my life but I’ve never made bath bombs! This seems so easy and looks like a lot of fun to do with your friends. Thanks for the instructions and awesome ideas!!

  2. My teen has been wanting to make these. I think we’ll be trying this for homemade holiday gifts. Thanks for the recipe & stopping by. Feel free to stop by the weekly party and share your blog posts, it’s every Friday. Glad to meet you via blogland.

    1. Hi, Emmie! A bath bomb is something you drop into your bath and it makes it fizzie. Bath bombs are sometimes called bath fizzles. It’s fun!

  3. Wow, these look wonderful! I was looking at some bath bombs, yesterday and they were $15 each. Ouch! These seem a lot more reasonable in price and it appears they are food safe too. (I assume all essential oils are food safe)!! Thank you.

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