Learn how to make epsom salt bath bombs at home for a fraction of the cost of buying them at the store!
I have been making a ton of bath bombs lately, and one of my absolute favorite recipes is for epsom salt bath bombs.
They’re made with all natural ingredients, take about 15 minutes to make, and they fizz up as well in the bathtub as any store-bought bath bomb!
If you’ve wanted to learn how to make bath bombs with epsom salt, I’ll teach you how!
Table of Contents
Epsom Salt Bath Bombs
First, gather your ingredients:
- 1/2 cup baking soda
- 1/4 cup Epsom salt
- Mica powder (optional)
- 1/4 cup citric acid
- 1/4 cup cornstarch
- 1 tbsp coconut oil
- 1/2 tsp water
- Essential oils (optional)
I really love how these bath bombs look when I color the epsom salt, but this step is optional.
Add Epsom salt to a small bowl and add 1/2 teaspoon of mica powder and stir until mixed well. Set aside 1 teaspoon of the colored Epsom salt.
Combine baking soda, remaining Epsom salt, citric acid, and cornstarch in a medium bowl. Add in essential oils and coconut oil. Next, add in water and mix until consistency is similar to wet sand and the mixture starts to stick together.
Add a small amount of the reserved colored Epsom salt to the bottom of a bath bomb.
Pack each half of the bath bombs with mixture, slightly over-filling. Firmly press halves together. Set mold aside for at least 15 minutes, and up to 2 hours.
When ready to remove the bath bombs, gently tap the sides of the mold with a spoon, then remove mold.
Allow bath bombs to set for 24 hours before using. Bath bombs can be stored in a container, away from water, for up to 6 months.
Epsom Salt Bath Bombs
A super easy and fail-proof tutorial for epsom salt bath bombs.
Ingredients
- 1/2 cup baking soda
- 1/4 cup Epsom salt
- 1/4 cup citric acid
- 1/4 cup cornstarch
- 1 tbsp coconut oil melted
- 1/2 tsp water
- 1/2 tsp Mica Powder optional
- 20 drops essential oil optional
Instructions
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Add Epsom salt to a small bowl and add 1/2 teaspoon of mica powder and stir until mixed well. Set aside 1 teaspoon of the colored Epsom salt.
-
Combine baking soda, remaining Epsom salt, citric acid, and cornstarch in a medium bowl. Add in essential oils and coconut oil. Slowly add in water and mix until consistency is similar to wet sand and the mixture starts to stick together.
-
Add a small amount of the reserved colored Epsom salt to the bottom of a bath bomb.
-
Pack each half of the bath bombs with mixture, slightly over-filling. Firmly press halves together. Set mold aside for at least 15 minutes, and up to 2 hours.
-
When ready to remove the bath bombs, gently tap the sides of the mold with a spoon, then remove mold.
-
Allow bath bombs to set for 24 hours before using. Bath bombs can be stored in a container, away from water, for up to 6 months.
Frequently Asked Questions
I know bath bombs can seem tricky, especially if it’s the first few times you’re making them! Here are some answers to frequently asked questions about bath bombs.
How Long do Homemade Bath Bombs Last?
Homemade bath bombs should last for 6 months, if stored in an airtight, moisture-free container.
How to get Bath Bombs out of 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.
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.
Here’s a recipe for how to make bath bombs without cornstarch.
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Make Epsom Salt Bath Bombs any time you want by saving it to your favorite natural bath and beauty Pinterest board:
More Bath Bomb Recipes
- Bath Bombs for Kids {with hidden toys inside}
- Mini Bath Bombs
- Homemade Bath Bombs with Lavender and Chamomile
Thanks for the recipe. Since I didn’t add any essential oils I had to add another 1/2tsp of water to get them to stay together. I also used Tapioca starch since I didn’t have any Corn. Worked just as well.