These adorable unicorn bath bombs are easier to make than they look.  With some fun sprinkles and creative layering, you can make these bath bombs for yourself or to give as a gift.

My daughter and I might be a little bit unicorn obsessed.  She wanted to make unicorn bath bombs from a unicorn soap mold. 

I was afraid that the horn would break, so we sketched some ideas to make a round unicorn bath bomb that still had major unicorn vibes.

This is an adorable DIY unicorn bath bomb, but it's actually pretty easy to make.  Even if this is your first time making bath bombs, this will be fairly easy.
Be sure to read through the entire post because I explain what each ingredient is used for an offer some tips to perfect bath bombs.

How to Make Unicorn Bath Bombs

Dry Ingredients

For these DIY unicorn bath bombs, I used baking soda, citric acid, Epsom salts, and arrowroot powder.

Baking soda and citric acid are what makes bath bombs fizz.  When they are mixed together and come in contact with water, they release carbon dioxide to create fizzy bubbles.

I used Epsom salt for a little extra magnesium.  It's not as much as you would get in a bath salt recipe, but it is there nonetheless.

Arrowroot powder hardens the bath bombs.  You can also use cornstarch in place of the arrowroot powder.  If you omit arrowroot powder or cornstarch, your bath bombs will be very brittle.

Coconut Oil

Coconut oil is moisturizing for the skin.  It's a solid at room temperature, so it also helps the bath bombs keep their shape.  

Fragrance Oil

I used Unicorn Kisses natural fragrance oil from Crafty Bubbles.  It's a blend of berries and fruits, and it smells just like a unicorn kiss should. 

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

Sprinkles

These adorable unicorn sprinkles are what makes these bath bombs look so good while still being an easy recipe.  

Mica

I used blue, pink, and gold mica.  This set of mica has 16 different shades, including the colors that I used.  

Bath Bomb Molds

I like this set of bath bomb molds with three different sizes.  I like having some options when making them, so I prefer the different sizes.  

These molds are thick and work well to release the bath bomb by tapping it without denting the mold.

Bath Bomb Making Tips

Moisture is the enemy of bath bombs.  I can't make bath bombs in the summer unless my central air conditioning is running.  

The Epsom salt and the citric acid will draw moisture and get warts on your bath bombs.  They are fine to use, but they may not fizz as much as normal.

When you're making your bath bombs, don't pack them too tightly.  You can to have a loose mound on top and then press the two sides together.  Do not twist because this can cause them to break in the middle.  

If you have problems with your bath bombs releasing, you can dust the mold with arrowroot powder before filling.

Unicorn Bath Bomb Supplies

• 1 cup baking soda
• 1/2 cup citric acid 
• 1/2 cup arrowroot powder
• 1/4 cup Epsom salts
• 2 tablespoons coconut oil, melted 
• 1/2 teaspoon Unicorn Kisses natural fragrance oil
• 2 teaspoons witch hazel
• 1 teaspoon pink mica
• 1 teaspoon blue mica
• Gold mica
• Rubbing alcohol
• 2-4 tablespoons unicorn sprinkles blend

Tools and Supplies

• Bath bomb molds
• Paint brush
• Bowls
• Spoon

Directions

Step #1

Combine the baking soda, citric acid, cornstarch, and Epsom salts.

Step #2

In a small bowl, combine melted coconut oil, Unicorn Kisses natural fragrance oil, and witch hazel.

Step #3

Slowly add the liquid ingredients to the dry ingredients.  Add about 1 teaspoon at a time while mixing.

Step #4

Add about 1/4 cup of the mixture to each of two small bowls.  Add pink colorant to one bowl and blue colorant to the other bowl.

Step #5

Place about 1 teaspoon unicorn sprinkles in one of the bath bomb molds.  Pack the mold with white mixture until it is about two thirds full.  Add 1 teaspoon of pink mixture and top with white mixture until mounded.

Step #6

For the other side of the mold, pack with white mixture until about two thirds full.  Then add a teaspoon of blue mixture and top with white until mounded.

Step #7

Press the two sides together tightly to form the bath bomb.  

Step #8

Let the bath bombs dry in the mold for 24 hours.  Then gently tap the sides to release the bath bombs.

Step #9

To paint the gold stripe. mix a teaspoon of rubbing alcohol and gold mica.  Use a paint brush to paint the center line.

Your bath bombs can be used immediately or stored for later.  If you are storing them, store in a dry location.

If you like these unicorn bath bombs, try one of these DIY unicorn projects:

• Unicorn Sugar Scrub Soap
• Unicorn Rubber Duck Soap 
• Unicorn Gradient Soap
• Painted Unicorn Bath Bombs
• Moisturizing Unicorn Bath Powder
• Unicorn Rainbow Poop Soap
• Unicorn Snot Glitter Gel
• Unicorn Fizzy Bath Salts
• Unicorn Body Scrub

unicorn bath bomb, unicorn, bath bomb

Yield: 4

Author: Cari @ Everything Pretty

Estimated cost: $15

Unicorn Bath Bombs

prep time: 15 Mperform time: 1 hourtotal time: 1 H & 15 M

How to make adorable unicorn 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
• 1/2 teaspoon Unicorn Kisses natural fragrance oil
• 2 teaspoons witch hazel
• 1 teaspoon pink mica
• 1 teaspoon blue mica
• Gold mica
• Rubbing alcohol
• 2-4 tablespoons unicorn sprinkles blend

tools:

• Bath bomb molds
• Paint brush
• Bowls
• Spoon

steps:

1. Combine the baking soda, citric acid, cornstarch, and Epsom salts.
2. In a small bowl, combine melted coconut oil, Unicorn Kisses natural fragrance oil, and witch hazel.
3. Slowly add the liquid ingredients to the dry ingredients. Add about 1 teaspoon at a time while mixing.
4. Add about 1/4 cup of the mixture to each of two small bowls. Add pink colorant to one bowl and blue colorant to the other bowl.
5. Place about 1 teaspoon unicorn sprinkles in one of the bath bomb molds. Pack the mold with white mixture until it is about two thirds full. Add 1 teaspoon of blue mixture and top with white mixture until mounded.
6. For the other side of the mold, pack with white mixture until about two thirds full. Then add a teaspoon of pink mixture and top with white until mounded.
7. Press the two sides together tightly to form the bath bomb.
8. Let the bath bombs dry in the mold for 24 hours. Then gently tap the sides to release the bath bombs.
9. To paint the gold stripe. mix a teaspoon of rubbing alcohol and gold mica. Use a paint brush to paint the center line.

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