Introduction: DIY Galaxy Bath Bombs

Picture of DIY Galaxy Bath Bombs

Very easy tutorial on how to make your own bath bombs inspired by LUSH.

Find more DIY tutorials on my blog:

Step 1: Gather Your Ingredients

Picture of Gather Your Ingredients

What you'll need:

1/2 cup baking soda

1/4 cup citric acid

1/4 cup cornstarch – I used arrowroot powder instead

1 tbsp. oil – I used almond oil

food coloring

some sprinkles (optional)

few drops of essential oil – I used peppermint and grapefruit essential oil

bath bomb mold

Step 2: Mix Your Dry Ingredients

Picture of Mix Your Dry Ingredients

Put all of your dry ingredients together in a bowl. This is your baking soda, citric acid and cornstarch.

Give it a good stir with a spoon.

Step 3: Add Your Oil

Picture of Add Your Oil

Slowly add 1 tablespoon of oil while you keep stirring the mixture.

This is your ‘wet’ phase and will make the mixture clump together.

You can also add a few drops of essential oil at this point. I used peppermint and grapefruit essential oil.

Step 4: Coloring Time

Picture of Coloring Time

Divide the mixture over several (smaller) bowls.

Add a different color of food coloring to each bowl.

Start by adding one drop, mix well and then add another.

I also added some gold cake sprinkles to the yellow batch.

Step 5: Create Your Epic Bath Bomb

Picture of Create Your Epic Bath Bomb

Fill up both sides of your mold with the mixture.

Press it down tightly as you go.

Fill up each half until they are somewhat overflowing. Next push both sides together and twist carefully until your mold is closed.

Let it dry overnight.

Reveal your beautiful bath bomb the next morning!


robypc made it! (author)2017-06-23

Had to add a little more oil because it was too dry but it turned out great!!!

VeraN4 (author)2017-02-02

What kind of oil should I use for the oil that's not the essential oil?

wyogrl (author)VeraN42017-02-08

You can use coconut oil, mineral oil,sweet almond oil. There are lots of different types of oils out can use.

ElainaS2 (author)2016-12-01

I like the fact that it seen easy. I've made bath bombs before, but they always crumbled. I will defiantly try it (if I have time)!

To prevent your bath bomb from crumbling make sure to press the mixture down firmly when you fill your molds and give the bath bomb enough time to dry (at least overnight). Hope this helps!


Paige NicoleD (author)2016-12-07

where can you get the bath bomb molds?

arwo (author)2016-12-07

I used to make bath bombs with hidden surprises inside like miniature rubber ducks or those expanding sponge dinosaurs. They were a hit as gifts!

CarolMcK (author)2016-12-02

Shouldn't you mention needing a mold in your list of ingredients? Also would be helpful to includewhen and how to attach the 2 halves ....

I have edited the ingredients list and instructions. Thanks for the feedback.

wells1784 (author)2016-12-02

Can you post pictures or video of it in water? Worried this will turn your skin and/or hair the color of the food coloring?

I'll see if I can upload a video. This bath bomb definitely doesn't stain your bath tub, hair or skin. The amount of food coloring is way too small for this. It only colors your bath water a pretty blue color!

ShaykaA (author)2016-12-06


The Makeup Dummy (author)ShaykaA2016-12-06

You need citric acid to make this DIY. It occurs naturally in citrus fruits. You can usually find the powdered kind in the canning aisle at the supermarket.

NicolasM113 (author)2016-12-03

Really nice, lush is getting too much expensive.

I will try :p

About This Instructable




More by The Makeup Dummy:DIY Galaxy Bath BombsDIY Summer Fruit Hair Clips
Add instructable to: