Frequently Asked Questions About How to Make Bath Bombs at Home

DIY Bath Bomb Making Kit $29.95

Many of us love the idea of soaking in a hot bath with a scented and revitalizing bath bomb melting into the water. Now you can make your own at home using our DIY Kit. If you don’t want to use our kit though, we try to help you get started on doing it on your own with this list of Frequently Asked Questions.

Making bath bombs is easy, but can take patience and practice. We want to help you to be successful and make your bath bombs special.

Bath bombs are made from baking soda and citric acid. When introduced to water you get the fizzy reaction. The recommended ratio is 2 parts baking soda to 1 part citric acid.

Combine all of your dry ingredients – citric acid, baking soda, Epsom salt, corn starch. Whisk to remove clumps. In a separate dish, combine all of your wet ingredients – oils and water. Then add the wet ingredients to the dry ingredients to create a moldable paste.

After you have created your base you can add fragrances, colorants, herbs and lotions to enhance your results.

You will then take your paste and place it in a mold to create the desired shape for drying.

Homemade bath bomb supplies: calendula petals, rose petals, lavender buds, almond oil, citric acid, epsom salt, lavender essential oil, grapefruit essential oil, dyes, bath bomb molds

Make your own bath bombs with grapefruit and lavender essential oils, Epsom salt, flower petals, and more!

Bath Bomb FAQ

Q: Why are my bath bombs crumbling and breaking apart?

A: Your mixture does not have enough moisture. You can use natural oils (coconut oil, almond oil) to create more cohesive results. If your bath bombs are cracking as they cure they may have too much moisture and you will need to add more dry ingredients

Q: My bath bombs soft and squishy. How can I make bath bombs harder?

A: Here again the problem is too much moisture. You will need to add more of the dry ingredients to achieve the desired consistency. Also, keep in mind that a high humidity location may yield softer results.

Q: Why are my bath bombs lumpy?

A: This means that you probably didn’t not combine the ingredients well enough to create a consistent paste. Use your fingers to get the consistency to be fine and not course. A whisk is helpful for mixing ingredients, if you have one.

Q: Why are my bath bombs not fizzy? How can I make my bath bombs fizz longer?

A: Typically this is because your ratios of baking soda to citric acid are off. Adding more citric acid should solve the problem. Another culprit is that you have added something extra which has cancelled out the fizz (essential oil, colorant) because you used too much. This may require some experimentation.

Q: Why are my bath bombs expanding as they cure?

A: This means that the fizzing is happening prematurely due to too much moisture. If there is a lot of expansion and fizzing, you’ll need to start over and have less moisture in your mix.

Q: Are there certain colorants that are recommended?

A: Yes, beware that some colorants can stain your tub. Be sure to purchase colorants which are glycerin based, so that they don’t stain. Also, you can use natural colorants like micas, but the results may be less than desirable. You can’t go wrong with the ones we include in our Bath Bomb Making Kit.

Q: How should I add fragrance and what kinds should I use?

A: The best approach is to start out with a small amount and see what you think of the fragrance emanating from the mixture. The amount of scent that you can detect in the open air is a good indication of what the bath will smell like. Essential oils are a natural and soothing way to add scents to your bath bombs.

Q: Can I add a moisturizer to my bath bombs?

A: Yes, absolutely. If you’re making these with your own materials, swap plain water for oils ,which will add an extra element of relaxation and skin nourishment. Grapefruit and lavender essential oils are included in the Bath Bomb Making Kit.

Q: How long should my bath bombs cure (sit in the mold)?

A: 2-4 hours typically. You should visually inspect them to determine if they are looking like they have cured properly.

Q: Do my bath bombs have a shelf life?

A: Typically around 4-6 months. Any longer and they dry out and lose their potency. If you are going to be storing them, try to do so in an airtight container.

Q: How many times can you use a bath bomb?

A: Simply run a warm bath, let the tub fill up, and then drop your bath bomb in the water. You can either let it dissolve completely before stepping in or start soaking while it fizzes. The oils and salts in the bath bomb will be released into the water as it dissolves, and they’re great for your skin! 

Q: How many times can you use a bath bomb?

A: A bath bomb can be used just once. But you can always make more!