How to Make Halloween Bath Bombs
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How to make Halloween bath bombs with an easy recipe.  This uses a layering technique and Halloween themed sprinkles for an afternoon craft that looks like it came from an expensive boutique.  


My family loves Halloween.  We have a huge party each year, complete with a DJ and giant Twister.  The kids play Twister all night, and the adults dance for hours.


The hubby and I do themed costumes, and the kids spend months planning their costumes.  





Somehow, in all of my years of blogging, I only had one Halloween DIY.  How is that possible?  I had to change that this year.


These Halloween bath bombs are simple to make, but I love the layering and the sprinkles.  I've used sprinkles in other bath bombs, and I like how they take it to a new level in looks while still being an easy recipe.


How to Make Halloween Bath Bombs


Baking Soda and Citric Acid


When baking soda and citric acid get wet, they have a chemical reaction that releases carbon dioxide.  This is what makes the bath bomb fizz and spin in the bath tub.


For best results, use a 2:1 ratio of baking soda and citric acid.





Arrowroot Powder


I use arrowroot powder in my bath bombs because it's non GMO where cornstarch is almost always from GMO corn.


You can use cornstarch if you want.  It will work the same way.


No matter which one you work, it's important to add because it hardens the bath bomb.  You don't want them to fall apart when you unmold them!


Cornstarch and arrowroot powder also mix with the baking soda.  This helps slow down the chemical reaction between the baking soda and citric acid.  


This helps these Halloween bath bombs fizz longer when they are put in water.





Essential Oils


I used a Halloween blend called Frankenfruit.  Use 2 drops of grapefruit to 1 drop frankincense.  It has a fun almost candy like scent.


You can also use one of these fun essential oil blends that smell like candy.


Colorant


I used red mica and activated charcoal. Charcoal is the best way to get a true black in a bath bomb.  





Polysorbate 80


I add polysorbate 80 to my bath bombs.  It's an emulsifier, and it helps the mica and coconut oil mix with the water.  


It's optional, but if you don't add it, the mica will stick to the side of the tub like crazy.  


Polysorbate 80 also helps the mica disperse through the water instead of just sitting on top of it.  


Sprinkles


I used these Halloween sprinkles from Etsy.  I love the colors and the size for these Halloween bath bombs.





Other Ingredients


I also added Epsom salts and coconut oil.  I use Epsom salts for a little boost of magnesium.  It can be absorbed through the skin while you're soaking in the tub.


Coconut oil is a solid at room temperature, so it helps harden these Halloween bath bombs.  It's also moisturizing for your skin.


Bath Bomb Tips


Humidity and moisture in the air can activate bath bombs.  I can not make them in the summer unless my air conditioner is running. 


You will need to place them in a container with a lid or they can start to activate.


Avoid twisting as you form the bath bombs.  This can cause them to break in the middle.  You want to just press them firmly.


I made these with a little more black than red.  That's so when I press them, the excess black can fall off and be reused.  Otherwise, it's red and black mixed, which can't be reused without changing the look of the bath bombs.


For more bath bomb inspiration, check out these posts:



Halloween Bath Bomb Ingredients




Tools


Directions


Step #1


Combine baking soda, citric acid, arrowroot powder, and Epsom salts in a large bowl.  


Step #2


In a small bowl, melt the coconut oil and add the essential oils.  Slowly add the liquid ingredients to the dry ingredients while stirring.  


Step #3


Divide the bath bomb mixture evenly between two bowls.  Add red mica to one bowl and charcoal to the other one.  Stir well.





Step #4


Dust the bottom of the bath bomb mold with arrowroot powder.  This helps the bath bomb slide out easier.  The sprinkle side slides out easy on its own, so you don't need to dust that side.

Step #5


Place about 1 teaspoon of Halloween sprinkles in the other mold.  





Step #6


Pack the sprinkle half of the mold with red bath bomb powder about half full.  Then top with black bath bomb mixture.


Step #7


Pack the other side of the mold with red mixture and then top with the black bath bomb mixture.  Overfill slightly.





Step #8


Press the two sides of the bath bomb together.  Press firmly to really push them together.  


Let the bath bombs sit for 24 hours before unmolding.  Gently tap the side of the mold, and the bath bomb should slide out.





You can use your Halloween bath bombs immediately.  If you are not using them right away, they should be stored in an airtight container.  The Epsom salts and citric acid will draw moisture from the air and start to activate.




bath bomb, halloween
Yield: 4 bath bombs
Author: Cari @ Everything Pretty
Estimated cost: $10

Halloween Bath Bombs

prep time: 15 Mperform time: 1 hourtotal time: 1 H & 15 M
How to make Halloween bath bombs with candy sprinkles.

materials:

  • 1 cup baking soda
  • 1/2 cup citric acid
  • 1/2 cup arrowroot powder
  • 1/4 cup Epsom salts
  • 2 tablespoons coconut oil, melted
  • 1 tablespoon polysorbate 80
  • 1/2 teaspoon essential oils or 50 drops
  • 3/4 teaspoon red mica
  • 1 tablespoon activated charcoal
  • 2-4 tablespoons Halloween sprinkles

tools:

  • Large bath bomb molds
  • Spray bottle with alcohol
  • Bowls

steps:

  1. Combine baking soda, citric acid, arrowroot powder, and Epsom salts in a large bowl.
  2. In a small bowl, melt the coconut oil and add the essential oils. Slowly add the liquid ingredients to the dry ingredients while stirring.
  3. Divide the bath bomb mixture evenly between two bowls. Add red mica to one bowl and charcoal to the other one. Stir well.
  4. Dust the bottom of the bath bomb mold with arrowroot powder. This helps the bath bomb slide out easier. The sprinkle side slides out easy on its own, so you don't need to dust that side.
  5. Place about 1 teaspoon of Halloween sprinkles in the other mold.
  6. Pack the sprinkle half of the mold with red bath bomb powder about half full. Then top with black bath bomb mixture.
  7. Pack the other side of the mold with the black bath bomb mixture. Overfill slightly.
  8. Press the two sides of the bath bomb together. Press firmly to really push them together.
  9. Let the bath bombs sit for 24 hours before unmolding. Gently tap the side of the mold, and the bath bomb should slide out.
Created using Craft Card Maker

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Cari Dunn
Cari Dunn

Cari lives on a small farm with her husband, three kids, two dogs, two cats, and a goat. She loves coffee, Gilmore Girls, her chihuahua, and her kids, but not in that order.