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1 hour
10-12 bubble bars

Mermaid Bath Truffle Project

If you’re ready for some bubbly goodness, give these DIY Mermaid Bath Truffles a try.
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  • Description
  • Supplies
  • Instructions
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There’s no denying how fun bath bombs are. As soon as they hit the water they start fizzing, moving around the tub, and releasing color. But have you ever used a bubbling bath truffle? The experience is a bit different but just as fun. As you break them up under the running faucet, they slowly produce creamy, fluffy bubbles. It’s a luxurious experience unlike any other.

This recipe has all the components of a great truffle – SLSA for bubbles, shea butter and cocoa butter to moisturize, and cream of tartar for the signature fluffy texture. These bars also have sea-inspired additives like coarse pink sea salt and Aqua Pearl Mica. Finish them off with Island Escape Fragrance Oil and it will feel like you’re at the beach every time you use a bar.


  • Skill Level: Intermediate

  • Time to Complete: 1 hour

  • Kit Yields: 10-12 bubble bars


13 Ingredients
13 Ingredients
13 Items
We do our best to include just what you need to make your project, however due to available product sizes, you may have left overs.
Sodium Bicarbonate - 1 lb
Sodium Bicarbonate - 1 lb Item#:IB002935
Varient/Quantity/Set: 0
size: 1 lb
Price: $2.00

Citric Acid - 1 lb
Citric Acid - 1 lb Item#:IB000052
Varient/Quantity/Set: 0
size: 1 lb
Price: $3.25

Sodium Lauryl Sulfoacetate - SLSA - 1 Jar
Sodium Lauryl Sulfoacetate - SLSA - 1 Jar Item#:IB002874
Varient/Quantity/Set: 0
size: 1-28 oz jar
Price: $25.85

Cream of Tartar - 2 oz
Cream of Tartar - 2 oz Item#:IB002994
Varient/Quantity/Set: 0
size: 2 oz
Price: $2.00

Shea Butter - 1 lb
Shea Butter - 1 lb Item#:IB002473
Varient/Quantity/Set: 0
size: 1 lb
Price Each: $7.99 Now: $7.19

Organic Cocoa Butter Wafers - 1 lb
Organic Cocoa Butter Wafers - 1 lb Item#:IB002499
Varient/Quantity/Set: 0
size: 1 lb
Price Each: $12.99 Now: $11.69

Glycerin - Liquid - 1 lb
Glycerin - Liquid - 1 lb Item#:IB002000
Varient/Quantity/Set: 0
size: 1 lb
Price: $3.20

Polysorbate 80 - 1 oz
Polysorbate 80 - 1 oz Item#:IB002429
Varient/Quantity/Set: 0
size: 1 oz
Price: $2.99

Island Escape Fragrance Oil - 2 oz
Island Escape Fragrance Oil - 2 oz Item#:IB001292
Varient/Quantity/Set: 0
size: 2 oz
Price: $8.02

Aqua Pearl Mica - 1 oz
Aqua Pearl Mica - 1 oz Item#:IB002269
Varient/Quantity/Set: 0
size: 1 oz
Price: $3.25

Super Pearly White Mica - 1 oz
Super Pearly White Mica - 1 oz Item#:IB002277
Varient/Quantity/Set: 0
size: 1 oz
Price: $3.25

Gold Sparkle Mica - 1 oz
Gold Sparkle Mica - 1 oz Item#:IB002167
Varient/Quantity/Set: 0
size: 1 oz
Price: $4.49

Pink Sea Salt, Coarse - 2 lbs
Pink Sea Salt, Coarse - 2 lbs Item#:IB002767
Varient/Quantity/Set: 0
size: 2 lbs
Price: $8.99




Mermaid Bath Truffle Project
If you’re ready for some bubbly goodness, give this project a try.


25 oz. Sodium Bicarbonate (Baking Soda) (41%)
7 oz. Citric Acid (12%)
13 oz. SLSA (21%)
2.5 oz. Cream of Tartar (4%)
6 oz. Shea Butter (10%)
4.5 oz. Organic Cocoa Butter Wafers (7%)
1.5 oz. Liquid Glycerin (3%)
0.5 oz. Polysorbate 80 (1%)
0.6 oz. Island Escape Fragrance Oil (1%)
Aqua Pearl Mica
Super Pearly White Mica
Gold Sparkle Mica
Coarse Pink Sea Salt



In a small heat-safe container, add 6 ounces of shea butter and 4.5 ounces of cocoa butter. Place the container in the microwave and melt the butters using 30-60 bursts. The cocoa butter takes a little while to melt. Be careful when removing it from the microwave, as it may be very hot.


Add 0.6 ounces of Island Escape Fragrance Oil, 0.5 ounces of polysorbate 80, and 1.5 ounces of glycerin to the melted butters. Use a spoon to thoroughly incorporate. Set aside.

melt oils and combine liquids



Push 25 ounces of baking soda, 7 ounces of citric acid, and 2.5 ounces of cream of tartar through a sifter into a large container. Use a whisk to mix the ingredients together. Very carefully, add 13 ounces of SLSA (do not put it through the sifter). SLSA is extremely fine and powdery, so it can become airborne very easily. It can be irritating, so wear a face mask if you prefer. Once all the ingredients have been added, slowly mix together the dry ingredients using a whisk.

Add 1 teaspoon of Super Pearly White Mica to the entire batch and use the whisk to fully mix it in. 



Add about 1/3 of the melted butter mixture. We recommend adding the liquid ingredients when they're about 180° F. This is quite hot, so use gloves to mix.

mix together with hands



Continue adding the liquid ingredients to the dry and mix together until fully incorporated. The final texture will be very similar to bread dough – soft, workable, and slightly sticky. The warmer the dough, the softer it will be. We found a dough temperature of about 85-100° F is a great moldable texture. If your dough is cooler than that, place the entire mixture into the microwave for 10-20 seconds to warm it.


You will have about 60 ounces of mixture. Split the batch into 2 containers. One container will have about 40 ounces, the other will have about 20 ounces.


To the larger container, add 1 teaspoon of Aqua Pearl Mica. Use your hands to thoroughly mix in the colorant until there are no streaks.

add colorant to dough



Once all the colors are mixed, it’s time to roll! Place a sheet of parchment or wax paper down and sprinkle baking soda on top to prevent the dough from sticking. 


Place chunks of the white bubble bar mixture onto the blue. Use your hands to spread it evenly onto the blue, and press them down on each other. Create a flat rectangle shape – about 14 inches long, by about 7-8 inches tall.

flatten dough



Use the parchment paper to roll the bubble bars. The bars may stick to the parchment or wax paper slightly, but that’s okay. You can use your hands to smooth out the roll.

roll in parchment



Continue rolling, and use your hands to help create a smooth, even log.

smooth roll



Once you’re happy with the shape, sprinkle the top with coarse pink sea salt and press the salt into the bars to help them stick.

add salt and press



Sprinkle the top with Gold Sparkle Mica.


Use a sharp non-serrated knife to cut the log into bars. If it's extremely soft, it can be a little sticky and needs to be handled very carefully. You can wait for about 30 minutes for it to harden slightly, or cut the bars very gently. 

cut into truffles



Once the bars are cut, place them gently on a piece of parchment paper or wax paper. Use your hands to give them a more uniform shape, smooth the edges, or fix any pieces that may have fallen off while cutting. As the butters in the bath truffles cool, they become hard. It takes about 3-4 hours for the bars to become firm depending on your room temperature. It can be hard to wait, but be patient!

Once you’re ready to use the bath truffles, place them in the tub for a slow fizzing reaction with a small amount of foamy bubbles. If you want to activate more bubbles, hold the bar directly under the running bath faucet while breaking off small amounts of the bar.

final project


Tutorial credits

Photographer: Amanda Kerzman




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