Shamrock Bath Bomb Recipe (DIY Bath Fizzies for St. Patrick’s Day)

7 Materials
30 Minutes

Learn how to make clover-shaped bath fizzies for St. Patrick’s Day! These fun and fizzy DIY shamrock bath bombs are a great way to celebrate the holiday.

Not only do they make bath time fun, but they’re also easy to make. My easy, no fail bath bomb recipe works with every mold. Even the those tricky silicone molds. So, you can use this formulation to create all kinds of other shapes for an at home spa day or homemade gifts.

St. Patrick’s Day Bath Fizzies

This easy bath truffles recipe creates fizzy, shamrock-shaped bath bombs. Developed to benefit your skin care routine, these bath fizzies are formulated with moisturizing cocoa butter to nourish skin. While the finished St. Patrick’s Day bath bombs don’t have the same colorful and dramatic effect as Lush products, they do fizz, foam and bubble! These bath time treats are perfect for people who prefer more of the skin care benefits and a little less flair in their bath water.

In addition to being kind to skin, you’ll also love the no-fail recipe! Especially if you’ve struggled with keeping your bath bombs from falling apart or activating prematurely. These DIY shamrock bath bombs are easy to remove from a silicone mold. So, your fizzing bath truffles will always come out the mold in one piece!

In addition to the skin nourishing cocoa butter I used when making my shamrock bath bomb recipe, I also included dendritic salt. This salt provides the same skin care benefits as regular salt. However, dendritic salt has a better rate of oil absorption and greater fragrance retention. Also, due to its smaller size, this type of salt also dissolves faster in water than regular salt.

Ready to get started? Follow my easy recipe and instructions below to learn how to make these cocoa butter bath bombs for St. Patrick’s Day!

Shamrock Bath Bomb Recipe

© Rebecca D. Dillon

These bath bombs are shaped like shamrocks or clover. Colored using green mica for St. Patrick’s Day, you can also use a green, water soluble dye formulated for bath bombs if you’d like to color the water. This exciting DIY is perfect for a ladies craft night. So, don’t be afraid to grab some friends before you embark on this project.


These are the ingredients you will need to make these no-fail bath fizzies for a fun, holiday surprise:

Supplies and Materials:

In addition to the ingredients called for in my shamrock bath bomb recipe, you will also need the following supplies and materials:

  • Digital scale: This is used to weigh the ingredients to make St. Patrick’s Day bath truffles. I recommend this Baker’s Math Scale if you plan to make a lot of bath, body or soap recipes.
  • Wilton 8-Cavity Silicone Shamrock Mold: A shamrock mold is used to form the bath fizzies into clover shapes. You can be typically find this mold online and in most craft stores.
  • Large Mixing Bowl: A large glass mixing bowl and heat-proof glass measuring cup are best to melt and mixing the ingredients.
  • Spoon or Whisk
  • Nitrile Gloves: While optional, you may want to invest in gloves to protect your skin. Raw citric acid can be stinging and damage nail polish. Therefore, I recommend putting on nitrile gloves to protect your hands.
  • Heat source: You’ll either need a microwave or a double boiler to melt the cocoa butter for this fizzing bath truffle recipe.
  • Sieve: If desired, you can use a sieve to remove any clumps from the citric acid, baking soda and SLSA prior to use.
  • Mouth Cover – SLSA is a fine, airborne powder that can irritate the airways. For this reason, cover your mouth and nose with a face mask or another form of protective covering.
  • Measuring spoons: A teaspoon measuring spoon is used to measure out the colorant for these DIY bath bombs.

How to Make Shamrock Bath Bombs

Here is how to make my easy shamrock bath bombs with cocoa butter:

1. Begin by weighing out the cocoa butter into either double boiler or a heat-safe, glass Pyrex container.

2. Heat the cocoa butter in a double boiler over medium heat until melted. Alternately, you can also heat it using your microwave. To do this, make sure you are using a heat safe container. Then melt the cocoa butter for the bath bombs at 50% power until melted.

3. Once the cocoa butter has melted, set it aside and allow it to cool slightly.

4. While the cocoa butter for the St. Patrick’s Day bath fizzies cools, weigh out the citric acid, baking soda, dendritic salt, and SLSA and combine in a large glass bowl.

Tip: I recommend that you wear a face mask for this step. Both the SLSA and the citric acid are finer particles that can cause coughing as they are released into the air.

5. Using a teaspoon measure, measure out the green mica. Then add the mica to the other dry ingredients.

6. Now mix the dry ingredients together. They should be thoroughly combined so the color is consistent throughout the ingredients.

7. Next, use the scale to weigh out the essential oil. Then stir the natural fragrance into the melted cocoa butter.

8. Combine the dry ingredients with the scented cocoa butter. Mix well to combine.

9. You will now fill five of the cavities of the clover or shamrock silicone mold. To do this, I recommend filling one cavity at a time. Start by loosely adding the fizzing bath truffle mixture to fill one cavity. Pile more of the mixture on top to form a mountain. Next, firmly press the bath bomb mixture into the mold cavity. Resist pushing so hard that the cavity bows out on the sides, but enough that the mixture is firmly packed.

Tip: The Bubbling Mermaid suggests when formulating your own bath bombs or bath fizzies for use in a silicone mold that you add kaolin clay for ease of removal. While The Chequered Lily also recommends curing your bath fizzies in a silicone mold for at least 48 hours. You can find more bath bomb tips here.

10. Proceed with filling the four additional cavities of your shamrock mold.

11. Once you’ve filled the mold, set the molded shamrock bath bombs aside. They should be placed out of the way and in a dry location.

12. Wait one to two days. Then carefully unmold the St. Patrick’s Day fizzing bath bombs.

13. Finally, wrap and label the finished shamrock bath bombs as desired for personal use or for gifting.


To use these holiday inspired bath truffles, simply add them to warm, running bath water and enjoy!

These easy bath bombs are perfect for people that don’t want super colored bathwater or prefer to avoid strong fragrances.


As humidity can affect the quality of bath bombs, store the final product in an airtight container until ready to use. Be sure to use your shamrock bath bombs within a few months for best results. As citric acid begins to lose its potency once exposed to air.

How to Sell Bath Bombs

If you plan to sell the shamrock bath bombs you produce, you do need to follow FDA guidelines for labeling your products. If you’re unsure about the rules and regulations regarding labeling cosmetics, I highly recommend the book, Soap and Cosmetic Labeling: How to Follow the Rules and Regs Explained in Plain English, by Marie Gale.

It is important to note that, as this product contains SLSA, it is considered a foaming detergent bath product. As such labeling requires an additional caution to be printed on the label unless it states that the product is for adult use only. This is in addition to the ingredient list and directions for use and other information required for cosmetic labeling.

Above is a screenshot of this requirement from the FDA website for cosmetic labeling regulations regarding this product.

Where to Buy St. Patrick’s Day Bath Fizzies

If you don’t have the time to make my shamrock bath bomb recipe, you can find similar handmade products on Etsy. I like this set of two magic bath bomb shamrocks from SpaGlo. Or you can browse for more shamrock bath bombs here.

More Easy Bath Bomb Recipes

If you like my DIY shamrock bath bombs, give one of these other recipes for making bath fizzies a try!

For more great projects and ideas from Soap Deli News, make sure to follow me on Facebook, Twitter, Blog Lovin’, and Instagram.

Suggested materials:
  • Citric acid
  • Baking soda
  • Cocoa butter
See all materials

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Rebecca D. Dillon
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