There is something about pink doughnuts with sprinkles that make me happy. They are just so darn cute! After making pink melt and pour soap with jojoba bead “sprinkles” a few years back, I revisited the idea and made these doughnut bath bombs. The Doughnut Half Mold gives them a cute doughnut shape, while a touch of coconut oil gives the bath water a touch of moisture. They are scented with the sweet Strawberry Fragrance Oil, but feel free to use any fragrance oil you like!
This bath bomb project uses two different types of colorant. The entire bath bomb mixture is colored with Rosy Pink La Bomb Colorant. The term “La Bomb” refers to a type of colorant that’s formulated specifically for bath fizzies; find them all here. They’re made of highly concentrated FD&C and D&C dyes mixed with glycerin. La Bombs are specially formulated to not leave any color on the tub, and won’t make your bath bombs fizz prematurely.
Once the doughnut bath bombs have hardened and are unmolded, the “sprinkles” are painted on using a mixture of micas and 99% isopropyl alcohol. The mica paint dries almost instantly. To help the micas (and coconut oil) disperse better in the water, I added a touch of Polysorbate 80 to the bath fizzy mixture. You don’t have to add it if you don’t like, but it helps prevent pools of oil, micas and glitter from forming in the water.
What You’ll Need:
Doughnut Half Mold
1 cup Baking Soda
½ cup Citric Acid
.5 oz. Coconut Oil
6 mL Strawberry Fragrance Oil
5-6 drops Rosy Pink La Bomb Colorant
Fine Iridescent Glitter
Witch Hazel in Spray Bottle
Optional: 2 mL Polysorbate 80
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- Doughnut Half Mold
- 1 cup Baking Soda
- ½ cup Citric Acid
- .5 oz. Coconut Oil
- 6 mL Strawberry Fragrance Oil
- 5-6 drops Rosy Pink La Bomb Colorant
- Fine Iridescent Glitter
- Witch Hazel in Spray Bottle
- Optional: 2 mL Polysorbate 80
- Yellow Lip Safe Mica
- Magenta Mica
- Super Pearly White
- Shamrock Green Mica
- Blue Mica – Cellini Lip Safe Mica
- 99% Isopropyl Alcohol
- In a large bowl, mix together the baking soda and citric acid. If there are any clumps in the mixture, you can push the powder through a sifter or break up the clumps with your fingers. Citric acid has a tendency to take off nail polish, so wear gloves to protect your manicure.
- Add the melted coconut oil, Strawberry Fragrance Oil, Polysorbate 80 and Rosy Pink La Bomb Colorant. Mix all the ingredients together, until fully combined. I have found it's best to use your hands for this step!
- Once the ingredients are fully mixed and there are no clumps of colorant or oil, add the Fine Iridescent Glitter and mix in.
- Begin spritzing with witch hazel, while mixing with your hands or a spatula. Continue spritzing until the mixture is a texture that holds its shape when squeezed.
- Fill each container with the bath fizzy mixture, pressing the mixture down to make sure it's packed tight in the mold. Make sure to leave the middle of the mold clean so there is a hole in the doughnut shape!
- Allow the bath bombs to harden and dry for several hours, up to overnight.
- Once completely hard and dry, remove the bath fizzies from the mold.
- Time to paint on the sprinkles! In separate containers, add about ⅛ teaspoon of the Super Pearly White Mica, Yellow Lip Safe Mica, Magenta Mica, Shamrock Mica and Cellini Blue Mica with about ¼ 99% isopropyl alcohol. Stir together to create a "paint." The paint should be thin enough to spread, but also saturated enough to leave a strong color on the fizzy.
- Using a fine point paint brush, start painting the sprinkles on the fizzy, cleaning your brush between each color. If you find the "paint" is bleeding on your bath bomb, add a bit more mica to the mixture.
- Continue painting on sprinkles until you're happy with the look. Allow them to fully dry for several hours. To use, place in a hot bath and enjoy!