A Foaming Bath Bomb

Bath bomb makers are constantly looking for ways to make their recipe different, and more unique then the competition. Similarly, we do this in our quest of making bath bombs. One of our favorite recipes is for a foaming bath bomb.


foaming bath bomb


Likewise, we are constantly trying to perfect our bath bomb ingredients, while still maintaining that same fun and relaxing feel to them, and that’s what you’ll experience with this recipe.

Sometimes having recipe that you can always fall back on is crucial. This is where we focus our attention in this post. Furthermore, we leave you room to add your own twist and additives, if you’d like.


Some Quick Thoughts…

Bath Bomb Making Tips:

  1. Know your ingredients.
  2. Furthermore, know what your intentions are. Do you want your bomb to float, spin, foam, all of the above?
  3. Practice with simple recipes first, then adjust or use additives as you see fit.
  4. Understand how climate or where you live effects your bath bombs.
  5. Also, buy good products. (Use skin safe products/fragrances/IFRA rates)
  6. Use fine grain baking soda and citric acid.
  7. Be safe. Wear masks. Even some all natural ingredients are powdery & fine, meaning they can get airborne and cause irritation.
  8. Have proper equipment.
  9. Make bath bombs in an open area.
  10. Caution using heavy oils in your bath bombs because they do make for slippery tubs!
  11. Understand the different types of bath bomb colorants and how they effect your bath bomb and act when in water!


Related Articles: Aromatherapy Shower Steamers


Before we discuss the recipe below, let’s talk about the key ingredients for this foaming recipe. This includes sodium lauryl sulfoacetae (SLSA), and coco betaine (cocomidopropyl betaine). Crazy names to these ingredients, right?! However, both are natural bubbling agents.

SLSA: Derived from coconut and palm oils. SLSA is a skin friendly surfactant. Additionally, SLSA is also fairly affordable, and can be used in other bath treats to give the same bubbling type characteristics. Specifically, solid bubble bath, bath truffles and bath salts.

Although we offer a brief overview of ingredients, here is some additional content: SLSA

Coco Betaine: Often used as a foam booster in shampoos, coco betaine, is water soluble and is known to be skin safe as well. Very little coco betaine is needed in a bath bomb recipe and a bottle of this surfactant, is very inexpensive.

Although we offer a brief overview of ingredients here is some additional content: coco betaine.


Foaming Bath Bomb Recipe:

Dry Ingredients:

  • Baking Soda – 1000 grams
  • Citric Acid – 500 grams
  • Sodium Lauryl Sulfoacetate (SLSA) – 1 TBSP
  • Kaolin Clay – 1/4 TBSP
  • Cream of tartar – 1 TBSP
  • Corn Starch – 1/2 TBSP


Wet Ingredients

  • Sweet Almond Oil – 1 TBSP
  • Avocado Oil – 1/2 TBSP
  • Polysorbate 80 – 1/2 TBSP
  • Coco Betaine – 1/8 TBSP
  • Rose Geranium Essential Oil – 5 drops per bath bomb
  • Water Soluble Dye (color of choice) – 1/8 tsp : 1sp water. Place a few drops to desired color
  • Witch Hazel



  • Mixing Bowl(s) – 2
  • Measuring spoons
  • Measuring cups
  • Whisk
  • Mask, gloves, eye cover
  • Spray Bottle
  • Bath Bomb Mold
  • Stand Mixer: optional



Step 1: Proper Attire & Bloom Your Dye(s)

Put on your gloves and mask. Add water to your dye(s). 1/8 tsp dye : 1tsp water

Step 2: Add Dry Ingredients (-) Citric Acid

Separate the dry ingredients into one bowl, run through a sifter, to make them as fine as possible. Don’t’ add your citric acid, yet!

Step 3: Add Wet Ingredients

Combine wet ingredients, minus your colorant. The witch hazel should be in a spray bottle, no need to mix this in yet, either.

Step 4: Wet to Dry

Pour the wet ingredients into the dry ingredients and start to mix. You can use a bowl and whisk, or to speed things up, use a stand mixer.

Next, slowly add your colorant to desired color.

Step 5: Citric Acid

Add your citric acid. Continue to mix. Furthermore, allow the mixer to run for 1-2 minutes or whisk for several minutes.

Step 5: Check Your Mixture

At this point, get your “hands dirty”, feel the mixture. Squeeze it together. For instance, take a handful of mixture in your one hand and squeeze, if the mixture stays together without sticking to your hands, it’s usually a good consistency to mold.

Step 6: Witch Hazel & Additional Testing

However, if your mixture is still to dry, grab your spray bottle and add 5 sprays. At this time, your mixture will begin to moisten quickly, don’t overdue your spritzes.

Next, do the squeeze test again. Additionally, you can squeeze and drop your mixture from about 6 inches above your bowl, if it holds together, it’s ready to go.

Step 7: Mold

Grad your mold, overfill each side of the mold and press together tightly, do not twist.
Next, tap on the top of your mold after about 5 – 10 seconds of pressure. Now, lift the top mold off.

Tap the bottom part of the mold and tip over the rest of the bath bomb into you hand. Place on a soft material.

Step 8: Dry

Allow your new bath bombs to dry for 48 hours.

Step 9: Have Fun

Place the bath bomb in the palm of your hand and slowly lower it into the tub of water, enjoy!


Final Thoughts!

Well, there you have it, one of our favorite foaming bath bomb recipes. Please note there is always room to tweak these ingredients slightly or even add embeds.

You may also choose to use additives in your recipes, which is fine as well.

Be sure to be on the lookout for some more recipes for all sorts of bath products. Like and share this post on your social media platforms!



  • https://www.ewg.org/skindeep/ingredients/701533-coco-betaine-COCOBETAINE-COCOBETAINE-COCOBETAINE/
  • https://www.ewg.org/skindeep/ingredients/706111-SODIUM_L-SODIUM_LAURYL_SULFOACETATE-SODIUM_LAURYL_SULFOACETATE/