How to Make Rainbow Bath Salts

Rainbow Bath Salts are a fun and relaxing addition to any bath time.

Rainbow Bath Salts are a fun addition to your bath that will help soothe tired, achy muscles.

A mason jar of rainbow bath salts and a small glass bowl of colored bath salts on a white wooden surface surrounded by colorful bakers twine. — *Homemade rainbow bath salts are a great gift and fun to make with kids.*

There’s something special about making your own DIY Bath and Beauty items, whether for yourself or to give as a gift. With this recipe, my rainbow bath salts are a gift you should give to yourself.

I love knowing exactly what is coming in contact with my skin – the fewer ingredients the better. Especially when they are simple, healthy ingredients that will help reduce inflammation and stress! Read on to find out how to make rainbow bath salts and get inspired to create your own.

Also, be sure to pin this recipe for later – it makes a wonderful gift for just about any occasion.

Benefits of Epsom Salts

Epsom salts added to your bath can relax tired muscles, alleviate inflammation and pain and even help reduce swelling. Whether you use these rainbow bath salts for a foot bath or all-over soak, you’ll be sure to feel more relaxed after!

Materials

Here is what you’ll need to make your own DIY bath salts in different colors:

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1 ½ cups Epsom salts
Red, orange, yellow, green, blue, and purple mica powder

Note: you can add essential oils to this mixture as well if you like. Personally, I love lavender for relaxation and citrus essential oil blends for rejuvenation.

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Instructions

Line up 6 small bowls.
Into each bowl, add ¼ cup of Epsom salts.
In the first bowl, add ½ teaspoon of red mica to the Epsom salts. Stir until the color is fully blended.
Rinse the teaspoon, and repeat with the remaining 5 colors and the remaining 5 bowls of Epsom salts, rinsing the teaspoon between each color.
Store your rainbow bath salts in an airtight container like a mason jar.

Six small glass bowls filled with Epsom salt and colored mica powder waiting to be mixed to make rainbow bath salts.

A hand holds rainbow colored Epsom salt in a glass mason jar.

Tips for Making Rainbow Bath Salts

You can add 10-20 drops of your favorite essential oil to each bowl, or a combination of harmonious oils. Be sure to stir these in well. By adding liquid, you may find you want to add a bit more mica powder to keep the vibrant colors.
For more muted colors, use ¼ teaspoon of mica powder instead of ½ teaspoon.
If your bath salts are clumping, you can spread them on a parchment paper-lined baking sheet. Bake for 15 minutes in a 200-degree F oven. Then you can make a funnel with parchment paper to add the salts to your jar.

Frequently Asked Questions

Can you use food coloring to make rainbow bath salts?

Yes. I prefer mica powder because it is natural and easier to blend, but a high-quality gel food coloring would also give you good results.

Which salt is best for your bath?

Epsom salt is my favorite thanks to its anti-inflammatory properties, but you could also use Himalayan salt, sea salt, or kosher salt. Each has benefits!

How do you use bath salts?

Run a warm bath and add about 1 cup of rainbow epsom bath salts. Relax and enjoy your bath!

Close up of a mason jar of rainbow bath salts and a small glass bowl of colored bath salts on a white wooden surface surrounded by colorful bakers twine.

More DIY Bath and Beauty Items

As my regular readers know, I love making my own homemade bath and beauty products. Here are a few items I think you’ll also enjoy! These all make fabulous gifts for teacher appreciation, holidays, and birthdays.

Sugar Scrub Bars – perfect for quick all-over exfoliation!
Easy Homemade Bath Bombs – find a variety of DIY bath bombs to choose from here.
Homemade Whipped Body Butter – silky-smooth and decadent for soft skin.
Chamomile Milk Bath Recipe – this one is so soothing and great for gift-giving.
Gingerbread Sugar Scrub – this is the perfect holiday gift!
Lavender Bath Salts – this is my favorite bath salt recipe for when I want to chill out and relax!