Today we’re back with another fun and fizzy homemade bath bomb – these DIY Geode Bath Bombs double as a pretty bathroom decor item in addition to being a relaxing addition to your bath.

DIY Geode Bath Bomb Craft

Ever since our family trip to Rochester, NY where my daughter purchased her first geode from the Strong Museum of Play and the Rochester Museum, she’s been obsessed!

We’ve excavated our own geodes, grown our own crystals and even made edible geode candies, so I thought it would be fun to make our own geode bath bombs!

These pretty bath bombs make a gorgeous gift and impart so many benefits when dropped into your bath. The activated charcoal, epsom salts and baking soda work wonders on your skin while the essential oils can provide a variety of aromatherapy benefits.

I’ve previously had some readers voice concerns about using sugar decor in our bath bombs. From my research I don’t think the small amount of sugar decorations in the bath bombs should cause any concern, but you can use epsom salts or large Himalayan salt crystals to replace the rock candy, if desired. The original creator of Geode Bath Bombs (The Makeup Dummy) actually makes a bath salt melt to give her bath bombs their geode-like appearance, which I wish I had thought of when we made ours – but I’m still pretty happy with how ours turned out and I think our method is probably easier for making these bombs with kids.

If you don’t already have some of the ingredients required to make bath bombs, the initial investment will run you about $25 – but it will give you enough materials to make easily 100 bath bombs. Or, you can use the materials up in other ways:

• Epsom salts can be used to make custom bath soaks, or just sprinkle it as-is in the bath after a work out or stressful day
• Citric Acid is a food additive that can be used in DIY cleaners, canning food, or you can make your own fizzy sherbet with it (it’s also used in home brewing!)
• Corn Starch is a great thickener used for sauces like gravy or with mac and cheese, or you can make oobleck with it (a fun sensory play material)
• Baking Soda is great for cleaning, is used often in baking, and you can make fun fizzy science experiments with it
• Coconut Oil is an awesome substitute for butter or oil in baking/cooking, and there are lots of holistic ways it can be used (I used to actually massage and wash my face with it when I had  some post-partum pimples and we often add it to our homemade sugar scrubs)
• Activated Charcoal can be used as a natural toothpaste or deodorant and can also be used as a natural food dye

I always store our bath bombs in a glass container in the bathroom. I try to use them up within 3 months but they should still hold their texture and scent for up to 6 months. After that, I find they can dry out and crumble easily.

More Fun Bath Time DIYs

• Bath Time Play Dough (with Video)
• Jiggly Jelly Soap (with Video)
• DIY Mickey Lotion Bars (with Video)
• Lavender Honey Sugar Scrub (with Video)
• Glow in the Dark Bath Bombs (with Video)

Check out our quick video to see how easy it is to make these DIY Geode Bath Bombs – and then don’t forget to scroll down to grab your free printable instructions:

Geode Bath Bombs Ingredients

• Baking Soda
• Citric Acid
• Cornstarch
• Epsom Salts
• Melted Coconut Oil
• Witch Hazel
• Pink Mica Powder
• Blue Mica Powder
• Geode Sprinkle Mix or Rock Candies <– you can use large salt crystals instead
• Activated Charcoal
• Gold Edible Glitter
• Alcohol <– you can use rubbing alcohol or vodka for this

Scroll down to the printable recipe card for full measurements.

Tip: if desired, add essential oils to the coconut oil to give your bath bombs a boost of scent.

Kitchen Tools You May Find Helpful

• Measuring Cups and Spoons
• Metal Bath Bomb Molds
• Mixing Bowls
• Whisk

How to Make Geode Bath Bombs

In a large mixing bowl, whisk together the baking soda, citric acid, cornstarch and epsom salts.

In a second bowl, combine the melted coconut oil and witch hazel together, adding any additional essential oils you’d like at this time.

Add the oil mixture 1 tsp at a time to the dry ingredients, mixing it together slowly so as not to start the fizzy reaction.

Divide the mixture in half in two separate bowls.

Stir the mica powders into one of the bowls – you can combine them until the mixture is completely purple or leave some of the pink and blue colors separate.

Add the activated charcoal to the second bowl and stir until completely incorporated.

Dust the inside of your bath bomb molds with cornstarch.

Pack the charcoal bath bomb mixture about 1/4″ thick along the edge of the bath bomb molds, then fill with the purple mixture.

Pack the mixture tightly into the molds then top with about 1 Tablespoon of the sprinkles (or additional coarse salt – if not using the candy sprinkles).

Allow the bath bombs to rest in the mold for up to 24 hours before gently tapping the side of the mold to release the bombs.

To finish off your bath bombs with that pretty gold edge, combine the edible gold glitter and alcohol together to form a paint and then use a paintbrush to apply along the edge. Add a second coating, if desired.

Allow the paint to dry before using or storing the bath bombs in an airtight container.

Pin this Easy Geode Bath Bomb Tutorial for a fun rainy day activity:

Grab your free printable instructions for our geode bath bomb recipe:

I hope your kids love these easy geode bath bombs as much as my daughter did!

For more homemade beauty ideas, check out our full DIY Beauty collection here:

For more crafts for grown-ups, check out our adult craft collection here:

Or for more homemade gift ideas, check out our full homemade gift collection here: