DIY Bath Bombs

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Luxurious and fragrant, make DIY bath bombs for any mood or season. This homemade bath bomb recipe never fails, and it’s super-easy to change it up with different scents.

a miniature ceramic dish with homemade bath bombs piled inside

Bath bombs DIY

Who else loves relaxing in a steamy bath with some fizzy bath bombs? There’s nothing like setting the mood with a glass of wine, some candles, and your favorite book or music.

To make the experience even more special, toss one of these DIY bath bombs into the water. The fizzy bubbles, essential oils, and beneficial minerals are a treat for the senses.

Today, I’m going to show you how you can create your own custom bath bombs at home. If you’re anything like me, maybe having these on hand will encourage you to decompress a bit more frequently.

Bring some relaxation into your home and create a spa-like experience whenever you need it. I’ll show you how to make your own DIY bath bombs with this easy tutorial.

If you’re feeling intimidated by this process, don’t be. These are so simple to make and really easy to customize. Let me show you.

blue, purple and yellow DIY bath bombs in a bowl


First, gather all of your ingredients. I found everything online and linked things up below to make it easy for you. (This post contains affiliate links.)

  • Baking soda: This helps add the fizz. Make sure it’s baking soda, not baking powder.
  • Citric acid: It works with the baking soda (they neutralize each other) to create an incredible fizz.
  • Epsom salt: There are powerfully relaxing properties in Epsom salts.
  • Cornstarch: This helps all the ingredients stick together.
  • Coloring pigment: Just for fun, colo can give you a visual clue about the scents.
  • Almond oil: Incredibly beneficial for your skin, almond oil can help moisturize your entire body as you soak.
  • Essential oils: Each oil has different properties. Choose the oils that match your needs, whether it’s relaxation, improved focus, or renewed energy.
  • Bath bomb molds: Totally essential to give them the classic round shape!
homemade bath bombs

How to make DIY bath bombs

You will find a full ingredient list and detailed instructions for these homemade bath bombs in a printable recipe card at the bottom of this post. 

First, measure and whisk the dry ingredients in a large bowl.

I used a coloring pigment for my DIY bath bombs. Since it’s a dry pigment, you’ll want to include that in this step. Add as little or as much as you’d like to achieve the color you prefer.

dumping ingredients into a mixing bowl
adding powdered pigment to DIY bath bombs ingredients
whisking mixture of dry ingredients

Next, in a small cup, mix together the wet ingredients. This is also where you’ll add the essential oils.

You can get essential oils almost anywhere these days. I recommend shopping for these in person so you can find a scent you like.

Also, pay attention to the benefit each oil offers. I made three different varieties. The purple bath bomb has an oil for stress relief, the blue prompts sleep, and the yellow promotes joy.

dropping essential oil into a cup

The next step is very important. You need to add the wet ingredients to the dry ingredients. You’ll want to do this very slowly, adding a few drops at a time while mixing.

The citric acid is what causes the bath bombs to fizz when it comes into contact with water. Adding the wet ingredients slowly minimizes this effect, allowing you to create the ball.

pouring wet ingredients into dry DIY bath bomb mixture
mixture of baking soda, citric acid, cornstarch, Epson salt and essential oils

Once mixed, you’re ready to mold. I picked up these bath bomb molds to create a ball shape. However, you can use things like a cupcake pan or silicon mold to achieve different shapes and sizes.

metal bath bomb molds
adding mixture to molds

For this round mold, fill each half, packing it in slightly until it’s overflowing. Then, firmly press the halves together. Let the mold sit for one minute. Once set, tap the mold and pull it apart.

how to make DIY bath bombs
mixture formed into a round ball

You’ll want to let the bath bombs dry for at least 24 hours before you create your own mini spa in your tub.

It’s that easy!

homemade bath bomb recipe

Frequently asked questions about making DIY bath bombs

Before we get to the printable recipe card, here are some questions people often ask about DIY bath bomb recipes. If you don’t see your question in this list, please leave it in the comments.

How long do homemade bath bombs Last?

I’d say you’d want to use these DIY Bath bombs within about 6 months. I liked to keep mine stored in a moisture-free clear glass jar. You’ll need to be very careful to not get moisture or water on them, as that will start the fizzing process!

Is it cheaper to make or buy bath bombs?

This depends on who you are buying them from and what ingredients you use. If you use pure essential oils, it might be more expensive to make your own if you compare them to bombs with artificial fragrances.

The real reason to make your own bath bombs is to control the ingredients to make body-nourishing and safe bath products you can trust. Plus, it’s fun!

Can bath bombs grow mold?

Yes, bath bombs can grow mold if they are exposed to moisture. Wrap your unused bath bombs tightly in tinfoil or keep them in an airtight container, and they will last longer.

DIY Bath Bombs |

That’s a wrap on DIY bath bombs!

If you have yet to make or even experience a bath bomb, I definitely recommend giving it a try. I know some people get intimated by making homemade bath bombs, and they might take a little practice.

A few of them might fall apart at first, but once you nail it, you’ll see how fun they are to make!

DIY bath bombs make thoughtful gifts too. Add them to a homemade spa gift basket with a bottle of wine and a couple of candles for the ultimate treat. Give someone the gift of relaxation – they’ll love it!

If you like this DIY project, you may enjoy these too:

DIY bath bombs pinterest image

DIY Bath Bomb Recipe:

DIY Bath Bombs | #bathbomb #gift #holiday #chirstmas #handmade

DIY Bath Bombs

Learn how to DIY Bath Bombs easy with this step-by-step tutorial. You’ll be enjoying a relaxing bath in no time!
4.08 from 27 votes
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Servings: 4 bath bombs


  • 1 cup baking soda
  • 1/2 cup citric acid
  • 1/2 cup epsom salt
  • 1/2 cup cornstarch
  • coloring pigment optional
  • 2 1/2 tablespoons almond oil or melted coconut oil
  • 3/4 tablespoon water
  • 12-15 drops essential oil
  • Bath bomb molds


  • In a medium bowl, mix together all of the dry ingredients. Add as much or as little color pigment to achieve desired look. Whisk to combine.
  • In a separate small bowl, mix together the wet ingredients.
  • Add the wet ingredients to the dry ones very slowly. (This is very important; otherwise you will activate the citric acid which is used to create the fizzing affect.) Mix until combined, and the ingredients look like wet sand.
  • Fill each half of the mold, packing the mixture in slightly until it’s overflowing. Press the halves together firmly. Let the filled mold sit for one minute. Lightly tap the mold and gently pull it apart to remove the bath bomb. Let the bath bombs dry for 24 hours before enjoying in the tub.

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Recipe Rating


  1. I absolutely love to make my own bath bombs! I like that you can control the ingredients you choose to put into them. I am definitely going to make these amazing bath bombs. I use Himalayan bath salt and really like it, so I am thinking about using it instead of Epsom salt. I have heard so much about Himalayan salt benefits for the skin and body.

  2. Could you mix everything together except add the citic acid last? I wonder if that will be better this way mixing would be faster and you would lose any fix.

  3. I just discovered your blog a few months ago. My daughter and I made these bath bombs for Christmas presents & they were a big hit. We used green food coloring & peppermint oil and pressed into a baking pan with shapes of Christmas trees, stars, & snowmen. They turned out really cute! Thank you for the recipe and tips:)

      1. I’ve used these in a Jacuzzi before, it’s a really fun idea, but I agree with Michael, in which it does need to be cleaned out afterwards.

  4. Thanks for sharing this! I want to get all of the supplies and make these immediately! They look like lots of fun to make with the added benefit of destressing!

  5. These look sooo pretty! Makes me wonder if you ground up your epsom salt before adding it. I’ve seen other recipes that look very textured and rough while your bombs look so smooth and effortless. ❤️❤️❤️

  6. Your bath bomb recipe worked great! Made some with my 7 year old for her science fair project. (Best science fair project I have done – at least the best smelling one!)
    Thanks for the links to amazon as well!

  7. None of the other bath bomb recipes worked that I tried, and then I did this one, and it worked so well! Very nice bath bombs. I made 6 of them with this mixture.

    1. I love this recipe as well! My only question is “how do you get the bath bomb from leaving a line of colour in the bath tub after draining the water”?

      1. You just cant. I used cosmetic pigments and they really leave a line of color. After that I tried using food coloring and they are great. They do change the water color but the bath tub is clean. I would try some food coloring if I were you.

  8. Just wondering how many this recipe yields? I am wanting to make them for Christmas but don’t know how much ingredients I need for the amount I want to do.

  9. Instead of using water which will cause premature fizzing, only use the oil mixture. You can add a bit more oil to make mixture consistency of wet sand. Also, if you leave bath bomb in its mold to dry for 24 hrs, it will help keep it hard for longer. I’ve noticed when using water in mixture, bath bomb tends to crumble more easily

      1. I used coconut oil, the solid sort. The mixture felt like wet sand & even mixing by hand & using food coloring, 2 drops for half a batch, my hands weren’t stained. Finding pigments at a last moments notice – not in this area. I wonder in colored chalk…yet the chalk…. well best for me to follow FOLLOW directions, I can lead myself astray! This IS easy, heck it didn’t take long. UNLESS you have a fan on blowing cornstarch, I made a fun mess…..Thank you for your ideas & I will be around for more!

    1. Hi! I made 8 smaller bath bombs yesterday, running around town like a freak in search of citric acid. I thought it was some scientific additive, ha ha! Anyhow although I used a different recipe which lacked the Epsom salts & switched pigments for food coloring, we shall see. I also purchased a silicone mold for ice in shape of citrus wedgies, so that batch was a lemony euc. I made purple for the lavender & cannot wait to try! I saw above that the citric makes bubbly foamies so maybe I’ll package some for my grandies! Hmm ….thinking that those lemony ones would be perfect for the flea ridden fur-kid! I love it! thank you.

    2. You can use any oil you choose, but with avocado oil which has a stronger scent, you may want to add more essential oil to overpower the smell of the oil….unless you prefer the avocado scent 🙂

  10. i made the bath bombs for the first time and am having trouble getting them out of the mold. Should i have used a little bit of coconut oil to season the molds first?

    1. I had the same issue! I also had issues with the bath bomb splitting in the middle when trying to get them out. But then I took them out and sprayed a little more water and now they are indenting and not drying right- so added too much water. What’s the trick?! I was fighting my bath bombs….