making bath bombs

How To Make DIY Bath Bombs

Indulging in bath bombs is a popular form of self-care. However, many individuals find themselves in the DIY mood and want to make a bath bomb of their own. There are several other reasons of making homemade bath bombs. Some people like to use it as an opportunity to have fun with their kids. Others like the ability to customize the color, scent, and shape, so they get exactly what they want instead of having to shop around. For some, they may like the price point of making own bath bombs, as opposed to buying them, while others make it their business and turn their DIY projects into profit.

No matter the reason is, there are several different things to know and consider before you embark on this journey. We put together a few of the most important things to consider to help make your DIY project a little easier.

How much does it cost?

Depending on the ingredients you purchase, the cost for making your own bath bombs at home can be as cheap or expensive as you want it to be. If you are trying to make bath bombs on a budget, you can easily snag all of the necessary ingredients for cheap. For example, if you follow a basic recipe and order your materials online in their most economical form, then you can get the ingredients for $40-$50 dollars. This will easily make 48 bath bombs in mini molds which brings your total cost to around $1 per bomb. If you don’t have a specific budget and want to make a more luxurious kind of bath bombs, then you can spend anywhere from $100-$200 on materials for your craft project.

Supplies required for making a bath bomb

The supplies required for making bath bombs are easy to find at your local store, or if you prefer to order online, you can find them available at many e-commerce stores.

  • Bath bomb mold: Most bath bombs tend to be a round shape. The most popular type is the stainless-steel round molds. However, it is important not to feel confined to a specific shape or mold. This is your DIY project, so be as creative as you want to be. Have fun and go with fun shapes like seashells, flowers, or hearts.
  • Mixing bowls: You will need a large mixing bowl, but having a variety of sizes is recommended, because some of the ingredients are mixed separately.
  • Whisk: A whisk can come in handy when you are mixing together the ingredients in your mixing bowl.
  • Gloves: Gloves are a required material to ensure your hands stay clean and don’t mix the ingredients if you are making different types of bath bombs in one sitting.
  • Wrapping materials: You will need something to wrap your bath bombs in after you finish. You can wrap them up in tissue paper, plastic wrap, or plastic bags with a seal.
  • Storage containers: It is a good idea to have an airtight container to store your bath bombs in to protect them from any extra moisture in the air.

Main ingredients

The main ingredients for a bath bomb recipe are citric acid, baking soda, essential oils, Epsom salt or sea salt, cornstarch, liquid oils such as olive oil or coconut oil, and any other additive you may want to combine like dye for coloring, dry herbs, etc. For some individuals, they like to be unique and add glitter into the mixture for that extra wow factor when used.

What type of colorants can you use?

One of the most popular features of bath bombs are the colors they turn the bathwater, when they dissolve. To get this desired outcome, you will need to add a colorant to your recipe. There are specific kinds of dyes to use, such as the La Bomb colorants. These specific colorants are made special for bath bomb recipes, and you can purchase them online.

For many, they like to go a cheaper route by simply using skin safe food coloring to give the bath bomb some color. The tip if using skin safe food coloring is not to add too much as it can leave a stain in your bathtub. 

Bath bomb recipe

There are several different recipes you can follow to make a bath bomb. The most popular options usually include:

  • Baking soda: 8 ounces (200 grams or 1 cup)
  • Citric acid: 4 ounces (100 grams or ½ cup)
  • Epsom salt or sea salt: 4 ounces (100 grams or ½ cup)
  • Corn starch: from ½ to 1 cup
  • Essential oils: 10-40 drops
  • Melted coconut oil (or any other liquid oil): 2 tablespoons
  • Witch hazel or water: 1-2 teaspoons
  • Colorant: 1-2 teaspoons

Optionally, can be added:

  • Dry herbs
  • Body glitter

Making a bath bomb

Once you’ve prepared all the necessary supplies and ingredients you have to do the following:

Step 1

Combine citric acid and baking soda. Make sure you get the powders thoroughly mixed together.

Step 2

Add other dry ingredients such as salts, dried herbs, corn starch, and any other dry ingredient you wish to add to your bath bomb recipe.

Step 3

Once you have mixed all of the dry ingredients together, you will need to focus on mixing the liquids. Mix together your essential oils, witch hazel, water, and any other liquid ingredient you want to add.

Step 4

Slowly, few drops at a time, add the liquid ingredients to the dry ones, making sure not to mix together too quickly as this can cause the dry ingredients to fizz. Mix together thoroughly.

Step 5

If the mixture is too dry, spray water into it to add moisture. It is important to only do a little at a time, because too much can cause the dry ingredients to begin fizzing.The added moisture will ensure the ingredients stay moist in the mold, so they can combine correctly and not crumble when removed from the mold.

Step 6

Place the desired amount of mixture into your molds. Be sure to pack them full so that the final product had the shape of the mold.

Step 7

Let your bath bombs dry in a warm place somewhere in your home that is out of direct sunlight.

Once your bath bombs are fully molded together, be sure to use and enjoy them within a few weeks of making to be sure you get the full benefits of the ingredients.

For how long you should leave the bath bombs in the molds?

It is recommended that you leave your bath bombs in the molds for 24-48 hours.  This is to allow them to dry for an extended period of time to ensure the ingredients are fully molded together. It’s a good idea to check your bath bomb after it has been in the mold for several hours to see if they are ready or if they need to remain in the mold for longer to ensure they hold their shape.

Can you dry them in the oven?

If you wish to dry your bath bombs in the oven quickly as opposed to leaving them to dry in the mold, you will need to have a muffin pan instead of the traditional types of molds. This is to ensure you have safe oven materials. You need to set the oven to the lowest setting, or simply warm for some ovens, then place the mixed ingredients into the muffin pan and put them in the oven. Keep in mind, that you do not want to bake them, so just keep the oven warm so that they can dry faster.

Can you put bath bombs in the fridge?

Another option for drying your bath bombs is to place the molds into the refrigerator for 30-60 minutes until they harden up.

How to make bath bombs stick together?

If you are having issues with getting your bath bombs to stick together, this means that your mixture is too dry. There are few things you can try to ensure they are fully form.

  1. Adding teaspoons of water, one by one, until you get the required consistency, will help the dry ingredients stay moist, which will help them stick together better.
  2. Depending on the bath bomb recipe you’re following, you can add some extra witch hazel or more liquid oils to help add moisture to the mix.

These are effective ways to add moisture to your recipe which will ensure your dry ingredients stick together. Be sure you add water and liquids slowly to avoid the ingredients fizzing.

How to harden homemade bath bombs?

If your bath bomb comes out soft, there is a chance you added in too much moisture in the recipe. This is a simple fix: just add more dry ingredients, which will help to absorb some of the moisture. By doing this, you are helping ensure your bath bomb comes out of the mold hard and fully formed.

Why is your bath bomb not fizzing?

If you go to try your bath bomb out and realize that it does not fizz very much when placed in the water, then you may need to add more citric acid to your ingredients the next time you make a batch. The citric acid is one of the main ingredients that help give bath bombs their signature “fizz.” When the citric acid combines with the baking soda in the water, it goes through a chemical change that results in the release of carbon dioxide gas, which creates bubbles. This is why the addition of more citric acid in your recipe could help increase the fizz of your bath bomb. Try adding small amounts of citric acid to the next batch. You can experiment until you get the desired effect.

Another possible reason your bath bomb is not fizzing is due to it having come in contact with too much moisture in the air. This is why it is important to wrap them and store in airtight containers in a dry place.

Also, remember to use your bath bombs quickly. If you store them for a long time and then try to use them, the fizz effect will be less because the freshness of the ingredients has faded over time.

Why are bath bombs cracking after they dry?

If you take your bath bomb out of the mold and realize they are crumbling this could be due to them being too dry. This can be corrected by adding more moisture the next time you make them. You can add moisture with a spray bottle filled with water or by slowly adding witch hazel or liquid oils. You have to be sure to add the liquid slowly to ensure it doesn’t start to fizz. The addition of this extra moisture will help ensure your bath bomb stays moist enough not to crack or crumble before it is transferred into the bath.

Another reason could be due to extra humidity in the air. If you live in an area that is excessively humid and plan to make bath bombs, it is recommended to use a dehumidifier to help control the moisture in the air.

Also, another possible reason for your bath bombs cracking after they dry is that they dried too fast. In this case, do not expose them to excessive heat or direct sunlight and allow them dry on their own in normal conditions.

How to wrap homemade bath bombs?

There are several different ways to wrap a bath bomb after it has dried. For many, the most popular method is to wrap it in tissue paper, plastic wrap, or plastic zip seal bags. This will help ensure your bath bomb is protected before you begin the packing process. If you are planning to give the bath bombs as gifts, you can use decorate ties to enclose them within the tissue paper or plastic wrap. If you are planning to wrap them in the plastic zip seal bags be sure you get all of the air out of the bag before you seal it off. This helps to lock out moisture, which will help keep your bath bomb fresh.

How to store bath bombs?

The best way to store bath bombs is to keep them in an airtight container to ensure they are safe from any type of moisture. If you live in an area with high humidity, the use of a dehumidifier will help ensure proper storage. Keep them in a cool, dry part of your home and do not delay their use after they are made to ensure you get the full benefits of the ingredients.

You can place them into baskets or jars, and for those who make a large number of bath bombs at a time, you can purchase ornament storage containers to pack them in neatly.

Final thoughts

Doing a DIY bath bomb project is a lot of fun for everyone involved. It is essential to know what materials and ingredients you will need, as well as how to make them, to ensure your project goes smoothly. There are so many different recipes you can try when making bath bombs. We encourage you to use everything you learned in this article and explore different methods. Be as creative as you want to be and add colorants, dried herbs, and other fun elements to make your products unique.