If you’re looking for a simple bath bomb recipe without cornstarch, this is it!
When I first started making DIY Bath Bombs, I was a little overwhelmed by the number of ingredients. Baking soda, citric acid, cornstarch, epsom salt, coconut oil, essential oils, etc. I remember wanting a super simple recipe to get me started.
Well, if you’re like me, and want something really easy without a ton of ingredients, making bath bombs without cornstarch is about as easy is it gets!
But before we get into the recipe, let’s start with a few basics.
Table of Contents
What is the Purpose of Cornstarch in Bath Bombs?
Cornstarch in bath bombs help slow down the reaction of the bath bomb by binding together the baking soda and citric acid. It makes the bath bomb dissolve slower.
Can you make Bath Bombs without Cornstarch?
Yes, you can make bath bombs without cornstarch. The bath bombs will dissolve more quickly, but as long as you still have baking soda and citric acid, you can make bath bombs.
Bath Bomb Recipe without Cornstarch
To make bath bombs without cornstarch, grab your ingredients.
- 1.5 cups Baking Soda
- 1 cup Citric Acid
- 1/2 cup Coconut Oil
- 20 drops Essential Oils (optional)
- Bath Bomb Molds
Start by combining baking soda and citric acid in a bowl. Stir to combine well. Add coconut oil and essential oils.
With your hands, work the coconut oil into the dry ingredients, until you get the consistency of wet sand and the mix starts to hold together.
Press mixture into each half of your bath bomb molds, slightly over-filling each half, then press halves together firmly.
I usually let my bath bombs sit a couple hours, but they need to sit at least 15 minutes, or they’ll likely break in half.
When ready to remove, use a spoon to gently tap the bath bomb mold, then slowly remove molds.
Allow bath bomb to dry for 24 hours before using.
Bath Bomb Recipe without Cornstarch
A super simple and quick bath bomb recipe that doesn't use cornstarch.
Ingredients
- 1.5 cups baking soda
- 1 cup citric acid
- 1/2 cup coconut oil
- 20 drops essential oil
Instructions
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Combine baking soda and citric acid and mix well.
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Add coconut oil and essential oils. Use your hands to work the coconut oil into the dry ingredients, until the mix starts to stick together and is the consistency of wet sand.
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Fill each half of bath bomb mold, slightly over-filling. Firmly press halves together and let mold sit for at least 15 minutes, preferably a few hours.
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Use a spoon to gently tap the sides of the bath bomb. Slowly remove bath bomb molds and let your bath bombs dry for 24 hours before using.
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Store bath bombs in a glass container, away from liquid, for up to 6 months.
How Long will Homemade Bath Bombs Last?
Homemade bath bombs will last up to 6 months, as long as you keep them away from moisture.
How do you get Bath Bombs out of the Mold?
Let the mold sit for 15 minutes. Use a spoon to tap the outside of the mold, on both sides, to loosen the bath bomb. Open the mold and gently remove the bath bomb and place on parchment paper to dry, for 24 hours.
Are Bath Bombs Safe for Kids?
Yep! Bath bombs are made with natural ingredients (no chemicals or artificial ingredients) so they are safe for kids.
If your child does have any allergies, be cautious of what essential oils or other oils you add to your bath bombs. For example, if your child has a tree nut allergy, don’t use almond oil in the bath bombs.
What Essential Oils are Good for Bath Bombs?
I love adding essential oils to bath bombs because they make them smell great, and are all natural! Many essential oils are great for bath bombs, including:
- Lavender essential oil
- Rosemary essential oil
- Geranium essential oil
- Tea Tree essential oil
- Chamomile essential oil
- Peppermint essential oil
- Eucalyptus essential oil
- Rose essential oil
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Save this to your all natural bath and beauty board so you can make it whenever you want!
More Bath Bomb Recipes
I have a lot of bath bomb recipes if you want to try some different kinds! Check these out:
LOVE! Mine dried wonderfully perfect in the globe molds! We also made a couple batches for cute soap molds those still came out great but not as clean so I’m going to try to tweak recipe ratio and the way I pack the more design detail molds. I love the amount of oil from my bath bomb as I have super dry skin and am always trying to do what I can to combat especially in the dry winter months! Super simple recipe and really fun to make! Thank you for sharing!
Oh! I also did half jojoba oil half coconut as I love jojoba for the skin! 1/4 cup each oil! It was amazing!
Thank you for the great recipe. It’s been SO hard to find one without cornstarch and isopropyl alcohol..
I didn’t use all 1/2 cup of the oil (I ended up using melted shea butter). I had about 1/4 C left over.. Is this normal?
Thank you so much for this recipe. I want to try these but I have a question… do these bombs fizz up the way commercial bath bombs do?
Thank you
I completed this recipe and all but two fell apart the next day while I was trying to put them in my shrink wrap bags, literally crumbled in my hands and I did not see that coming, they held their shape in the molds, came out of the mold with ease then crumbled. I got two that I am able to shrink wrap and sell now I pray they do not fall apart when my customer tries to remove it from the bag. Any idea why this happened? I love the feel of them over the ones I have made previous which included cornstarch and epsom salt. The reason I tried this recipe was because I purchased corn starch that made my mixture extremely dry. My very first attempt was with a bath bomb diy kit for children which called for cornstarch, baking soda, epsom salt, water, Essential oil and citric Acid. I had arrowroot on hand as my cornstarch when I found a recipe online to create more and so we did( my grand daughter and I) they came out very solid but not smooth like your recipe. So I looked into an alternative so I like the firmness achieved of the more complex recipe but the look and feel of the recipe you shared.
Can you add Epsom salts to this? how much would you suggest?
Hi! I love that this is such an easy and simple bath bomb but I’m finding myself a little too oily coming out of the tub. Is it possible to use less coconut oil and still be able to have a solid mold?
I would recommend using half of the oil, and see if your bath bombs will still hold together. Let me know how it goes!
Do you melt the coconut oil?
Can this be made using olive oil? My daughter is allergic to coconut. Thanks
Yep, that should be fine!