Bath Bombs

Cost-Effective & Fun DIY Bath Bombs (FAQ & Tips)

Bath bombs are a great way of unwinding in a nice, warm bath. Many of us tend to use lots of them and that can become costly. Luckily, now you can make your own bath bomb at home. You can make them fresh all the time, and enjoy their bubbling and fizz every night.

Find out about:

  • How bath bombs work.
  • How to make them smell incredibly good.
  • How to actually make a homemade bath bomb for adults and children.
  • How to use them and how to store them properly.
  • Etc.


Frequently Asked Questions about Homemade Bath Bombs


There are lots of things a beginner must know at first. This article contains some of the most common questions about homemade bath bombs.


Clearing the fog away will help you make the perfect bath bombs for your personal use or to give away as gifts.


Your DIY bath bombs can be natural and organic because of the ingredients you’ll be using. You can make them at home, as per the tips I’ll be giving you.


The perfect bath bomb takes a lot of practice. You’ll know it’s just right when it doesn’t crumble and doesn’t lose its shape.  


As we go deeper into the questions and answers, you’ll be feeling more and more confident about trying to DIY. That said, let’s begin with what is probably the thing that most people want to know before starting.


1) How much do bath bombs cost?

Very colorful and highly scented, bath bombs are very much in demand these days. Lush started making them first and everyone is crazy about them now.


But exactly how much are bath bombs, you say? Well, their price can range anywhere from $4 to $11 a piece. Now, if you use them rarely, their cost shouldn’t be a big issue. But chances are you’ll be hooked very fast and you’ll start using them more often.


As a result, we can now make our own handmade Lush bath bombs at home. Later in the article, you’ll also see how.


Making your own bath bomb gives you total control over the ingredients you’ll use. They can all be natural, thus gentle with your skin. They can also have therapeutic benefits for your mood and health.


DIY Bath Bombs FAQ


2) How do bath bombs work?

Bath bombs are an interesting skin care and health promoter. Because of their ingredients, they need to be thrown in the bathwater to start fizzing.


The fizzing reaction is given by the interaction between the baking soda and the citric acid with the water.


When the fizzing starts, your bath bomb dissolves in the water. All the ingredients spread out evenly.


When you go in the tub, they’ll all touch your skin. This is how they work, but how long do bath bombs last in the tub, right?


They last all the way through until you’re done and the water is drained. Once dissolved, the bath bomb becomes a simple mixture of ingredients beneficial for your health.


3) Can you use bath bombs and bath salts together?

Generally, bath bombs contain bath salts, among other ingredients. When you use a bath bomb, you also use bath salts. Sure, bath salts are an optional ingredient which can be left out when making them yourself.


If you’re making bath bombs without salt (Epsom, pink, etc.), then adding some bath salts is more than welcome.


Still, even if you’re using bath bombs made with salt, you can still add some more in the bathwater. Just keep it all at low concentrations so your skin doesn’t get irritated.


4) How to make bath bombs smell good?

When you make your own bath bombs, you can make them smell really good. Of course, you can also opt to make them unscented.


The fragrance is optional. However, our sense of smell plays an important role in our mood and well-being.


When stimulated, it can connect to the limbic system of the brain and remind you of things. These things can be people in your life, experiences, foods, etc. All these can make you feel better in an instant.


Thus, to get that effect, you can use essential oils to make bath bombs. Like I said, you can make bath bombs without essential oils also.


Simply skip adding them in your homemade bath bomb recipe. You’ll get the details and steps for that later in the article.


DIY Bath Bombs FAQ (Essential Oils)


If you want to know how to make scented bath bombs, buy some essential oils. There are over a hundred different varieties you can choose from. Do you want your bath bomb to smell sweet and intoxicating? Then go for Jasmine, Rose, Amber, etc.


Do you want them to smell delicate and womanly? You can choose Ylang Ylang, Rose Geranium, Bergamot, etc.


If you simply want your bath bombs to help you relax, unwind and sleep, you can choose Lavender or Sweet Orange. The list can go on and on, and you can find more suggestions here.


Essential oils are volatile, concentrated plant liquids. They have various health and mood effects too. It all depends mostly on the chemical composition of each essence.


Most Aromatherapy essential oils have antibacterial and antiviral properties. You can use them to disinfect a wound or prevent the flu.


They are also anti-inflammatory and soothing. In other words, they can be used for almost any problem of the skin.


Other essences can decongest the respiratory system, thus you can use them for that purpose only. Although some are better at something than others, they can usually deal with many other problems at a time.


If you want to know how to make bath bombs with essential oils, check the final questions for details.


5) How to make bath bombs without baking soda?

Unfortunately, in homemade bath bombs, baking soda is not an optional ingredient. Baking soda and the citric acid or cream of tartar create the characteristic fizz.


Baking soda is a great grease breaker and it can also soften the skin. It can help balance the water pH, which can also benefit your skin.


6) How do you make bath bomb molds?

When it comes to the shape of your bath bomb, you need molds. People have used pretty much anything in their kitchenware. You can use ice cube trays and muffin molds. Or you can buy round bath bomb molds to make round bath bombs.


They can be metal or silicone. The silicone mold is the most common because, once it hardens, your products can get out easier.


How do you mold bath bombs? Simply by compressing enough of the composition into the mold. Apply tight pressure on them so they can stick together when dry.


Of course, if you’re more of a DIYer, you can make your own bath bomb molds. You’ll find lots of steps on the internet to guide you. Generally speaking, you’ll need silicone and another object from which to shape your mold.  


DIY Bath Bombs FAQ (Natural Coloring)


7) How do you color bath bombs?

I know you want to know how to make colorful bath bombs. They can offer a very lovely visual spectacle when dropped into the water. Colored bath bombs can also make the bath more enjoyable for the kids or more relaxing for the adults.


Here’s more about your options:

You can go for food coloring shades or natural colorings like turmeric or beetroot juice. However, these coloring methods can also stain (the skin, the tub, the towels, etc.)


Instead, more and more people go for the mica colorants. Mica powders are very easy to use and have a fine shimmer to them.


8) How do you make bath balls that fizz?

You can make bath balls that fizz by combining baking soda with citric acid (or something similar). The fizzing happens when they get in contact with the water.


The fizz is a normal chemical reaction that can last more or less, depending on the size of the bath bomb.


It also depends on the shelf life of the product. The chemical reaction lasts as much as it lasts, and that can’t really be controlled.


9) How to make bath bombs fizz longer?

You can make bath bombs fizz more by making and using them fresh (within a month). The longer they sit around, even properly stored, the less they will fizz.


It’s not a rule but it’s a common thing that happens with these products.


The baking soda and the citric acid continue to react with each other even when not used. Humidity can also affect their fizzing ability.  


10) How do you dry bath bombs?

How long do bath bombs need to dry? They usually need about 24 hours to be ready for bath use.


Bath bombs can be dried in many ways. It only depends on what you’ve used as molds for your products.


If you’re using muffin trays, you can also dry your bath bombs in the oven. How? Preheat it well, turn it off and then place your tray inside. You can leave them there, with the door closed for 30 – 45 minutes. This is one way of drying bath bombs quickly.


For round metal molds, you may leave them somewhere dry (with no humidity) overnight. The same applies to ice cube trays or silicone molds.


11) How to make bath bombs harder?

The normal texture of a good bath bomb is that of wet sand. If it seems too moist, you can simply crumble them and add more salt or cornstarch.


Also, to make sure the bath bomb comes out hard, use water sparingly. Place it in a spray bottle and use small bursts during the mixing process.  


12) My bath bombs are crumbling, how do I fix it?

Bath bombs that are too dry can crumble very easily. You can solve this problem by smashing the bombs and spraying a bit more water on them. Mix it in gently until you get that wet sand-like feel and look. Give the mixture a new form again.


13) How to get bath bombs out of molds?

Regardless of what type of mold you’re using (metal, trays, silicone, etc.), you can spray some grease on them before putting the composition in. This is just like in cooking, so the bath bombs can get out easily, without crumbling.


14) How do you use a bath bomb?

Curious about how to use a bath bomb? There’s nothing more simple! Pick the one you’re in the mood for or need at that time. Then fill the tub with hot water and throw a bath bomb in.


Watch it sizzle and bubble, and release all its wonderful colors. The steam created by the hot water will diffuse the essential oils into the air you’ll inhale. Thus, you’ll get to enjoy their benefits internally too.



DIY Bath Bombs FAQ


15) How long do bath bombs last?

An average bath bomb has an estimated shelf life of 6 months. Good storage conditions may lengthen their shelf life.


However, the more they sit around not being used, the higher the chance they’ll bubble less. Depending on what essential oils you use, they can also lose their properties. See the shelf life of essential oils.


So, how long are bath bombs good for? Well, I’d say they’re safe to use anywhere between a month and six. Your best bet is to make them fresh every month to reap all their benefits.


16) How do you store bath bombs?

Bath bombs are very sensitive to humidity first, and then light. Essential oils can oxidize in light and heat.


Keep your Aromatherapy bath bombs in airtight recipients, in dry and dark places. Also, you can wrap each of them in plastic wrapping foils to preserve their scents better.


17) How many times can you use a bath bomb?

You can use a bath bomb only once. The moment you throw it in the water, it dissolves entirely. This means the bath bomb will simply be drained out with the water.


18) How do you make bath bombs easy?

Here we are! I can now show you how bath bombs are made, with steps and tips along the way. Learning how to make bath bombs is easy.


Whether you call them fizzy bath bombs, fizzies or simply bath bombs, check out the steps on how to make your own homemade bath bombs.


How to Make DIY Bath Bombs


Main Ingredients:

  • Carrier oils (for your skin type)
  • Baking soda
  • Cornstarch
  • Citric acid or cream of tartar
  • Water or hydrosol in spray bottles
  • Mold


Optional Ingredients:

  • Epsom salts or any other kind of salts.
  • Sugar decorations
  • Glitter
  • Colorants
  • Essential oils


The optional ingredients are meant to help you make bath bombs like Lush. They can enhance and add more therapeutic effects to your bath experience too.


Plus, they’re also cheaper because you buy enough ingredients that’ll last for many bath bombs.


Steps to Making Cheap Bath Bombs/Fizzies


Step 1

  • Take a glass bowl and mix all your dry ingredients (powders). You can also throw in some flower buds and petals now.

Step 2

  • Use your spray bottle to spritz a bit over the dry ingredients. Use small bursts and mix really well after each. Keep at it until you get that wet sand-like texture I was telling you about.

Step 3

  • Dilute your essential oils with the carrier oil. Add the mixture slowly in the bowl and mix well after each drop. If they’re liquid, add your colorants now too. While mixing, you can get lumps, but that’s normal.

Step 4

  • After you’ve mixed all the ingredients really well, you can start molding them. The bombs will start drying quite fast so you need to move fast. Keep your spray close by should you need it.

Step 5

  • All that’s left now is leaving the bath bombs to dry. Leave them out or inside the oven for the time specified earlier. Once they’re dry, they’re good to use.


This is how you make bath bombs at home. You can also check this article out for even more tips and tricks.


If you’ve always wondered how to make lush bath bombs, now you know how.


Related questions:

Q: How to make bath bombs with citric acid or cream of tartar?

A: You can use one at a time only. It goes in the first mixing phase. (See step 1)


Q: How to make bath bombs without citric acid?

A: If you want to replace the citric acid, you can do it with cream of tartar. Without an acid, the bath bomb won’t fizz. When they fizz, both the baking soda and the acid react with each other and cancel most of their properties.


Thus, there’s no real danger to your skin. Of course, the most sensitive ones can suffer some irritation.


DIY Bath Bombs FAQ and Ingredients


Q: How to make bath bombs with Epsom salts?

A: Epsom or any kind of bath salts are optional. They’re great to add to the recipe because of their beneficial skin properties. Simply add the salts in phase or step 1.


Q: How to make bath bombs without Epsom salt?

A: This one is simple. You can simply omit the salt when you mix your dry ingredients.


Q: How to make bath bombs without cornstarch?

A: The purpose of the cornstarch in a bath bomb is to thicken the composition. It works perfectly with colorants. If you want to make bath bombs without cornstarch, I’ve seen people use green clay instead. I’ve never tried it though.


19) How do you make bath bombs for kids?

If you want to know how to make kid-friendly bath bombs, the process is the same as for any other bath bomb. Just make sure that your kids are not allergic to any of the ingredients.


Some essential oils can be especially dangerous for them. Talk to the pediatrician about them if you don’t know what to do.


20) How to make bath bombs (Recipe)

After all the theory and details so far, it’s time to put it all to the test.


Here’s an idea of a simple recipe of a bath bomb with Eucalyptus essential oil. You can read more about it and how to make it, step-by-step, here.


Eucalyptus Bath Bomb Recipe


  • You’ll need all the ingredients I’ve mentioned above.
  • You’ll also need 10 drops of Eucalyptus essential oil and 5 of Lemongrass.
  • Mix them with the carrier in the second phase.


The carrier should be one for your skin type. Drier oils like Macadamia, Watermelon or Hazelnut are great for oily or combination skin. Fattier oils like Avocado, Argan or Jojoba are great for dry or normal skin types.


DIY Bath Bombs FAQ


21) Do you have to take a shower after a bath bomb?

Bath bombs contain natural ingredients like carriers and essential oils. They remain in the water after the fizz is over.


They are also drawn to your skin’s natural oil (sebum). This means that once you’re in the tub, they’ll stick to your skin.


You can then massage your skin with these oils, which will soften it. When you’re out, you don’t need to apply another cream or body lotion.


You can simply dry out and go on with your business. In this case, no, you don’t have to take a shower after using a bath bomb.


If you don’t like the oily sensation of the oils on your skin, then yes, you’ll have to take a shower afterward.


22) How do you wrap bath bombs?

Bath bombs have to be wrapped in plastic before being wrapped in fancy wrapping papers. That’ll protect them from humidity for a few weeks and ensure your gift will still look good after that time.


Instead of wrapping, I find it more practical and nice-looking when using a cute glass jar. You can then wrap the jar or simply tie a nice ribbon on its neck.



It’s very fun and easy to make bath bombs at home. You can use whatever aromas you want and you can go for whatever therapeutic effect you want.


Everything that comes in contact with your skin is natural and has a known source because you picked it.


In other words, you’ll be protecting yourself and the environment with DIY bath fizzies. Plus, you get to enjoy all their benefits regularly.


Speaking of which, this means that your bath bombs will also be cost-effective. Why? Because you’ll have to buy your ingredients in bulk.


Have you tried making bath bombs on your own so far? How did it go and would you keep on making them yourself? How do you find them compared to commercial bath bombs? Tell me everything 🙂


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