Rainbow Bath Bomb Recipe

 Oct 10,2022

A rainbow bath bomb is a type of bath bomb designed to release multiple colors into the water as it dissolves, creating a visually stunning effect. As the bath bomb fizzes and melts, it typically releases layers or bursts of different colored powders or oils, creating a vibrant rainbow pattern in the water.

These bath bombs often also have pleasant fragrances, moisturizing ingredients like Essential Oils or shea butter, and sometimes glitter or other additives that enhance the sensory experience. They're popular for both their aesthetic appeal and the relaxing, aromatic bath experience they provide. Some rainbow bath bombs also include fun shapes or even small surprises inside!

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2 cups baking soda
1 cup citric acid
1/4 cup cornstarch
1/4 cup dead sea salts
1/3 cup coconut oil
1 tablespoon polysorbate 80
1 tablespoon Shea butter
20 drops each of orange and lemon grass essential oil
Red, Orange, Yellow, Green, Blue and Purple colorant
Stainless steel bath bomb molds
Spray bottle filled with rubbing alcohol
1 large mixing bowl
1 microwave-safe bowl
6 small mixing bowls

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Start with your large mixing bowl. Add the baking soda, citric acid, dead sea salts, and cornstarch. Mix the dry ingredients together with a spoon or your hands, breaking up any chunks. Use caution with citric acid. It likes to become airborne with enthusiastic helpers and can be a bit of an irritant when inhaled.
Melt the coconut oil and shea butter in a microwave-safe bowl in short increments. Don’t let it boil; about 20 to 30 seconds is usually enough. Stir.
Add the polysorbate 80 and essential oils to the coconut oil and shea butter. Stir.
Pour the liquid into the dry mix bowl.
Mix it really well with your hands. Really work it all together until it takes on the consistency of wet sand and holds a shape when you squish it with your hand.

Divide the mix evenly between the 6 bowls.
Add 2 drops of red color to the first bowl. We are very careful. Since we use liquid colors in this bath bomb recipe, it will trigger a chemical reaction. If this concerns you, or you want darker colors, see below for tips!
Mix the color in thoroughly.
Repeat with orange in the next bowl, then yellow, green, blue, and purple until you have six colored bowls.

Hold half of the mold in your hand. Add some red mix until it is about 1/3 full. Then add orange mix, then yellow. Make sure it is loosely heaped.
Then repeat on the other side, starting with purple, then blue, and finally green, again making sure it is loosely heaped.
Bring the two halves together and press together firmly. Use a twisting motion to release any excess mix.
Tap the ends and release the mold. Set it on parchment paper in a warm, dry place and let harden for at least 24 hours.

Once hard and set, place your bath bombs in an airtight container. When you are ready to use them, run a nice warm bath, climb in, and add the bath bomb to the water. See how it fizzes and colors the bath water!

Making rainbow bath bombs yourself may be a bit complicated. If you want to have them easily, you can choose to buy them directly, either at offline stores or online shopping platforms. If you're looking to purchase in bulk or even customize private label rainbow bath bombs, you can contact a bath bomb manufacturer. Boymay Cosmetics Co., Ltd. is one such manufacturer that offers wholesale and OEM one-stop services for rainbow bath bombs. With over 10 years of experience in bath bomb research and production, we have an experienced trade team that can provide comprehensive services, including free samples and free packaging design. Contact us today to submit your cooperation request.

If you find making your own rainbow bath bombs tedious, you can buy the products directly from our website.