Hi friends. This week I’m sharing how I make you own DIY Lush bath bath bombs. I’m guessing you’re here because you don’t want to pay $7-$9 for a single bath bomb at Lush. While they make your bath 1,000 times better, I don’t care who you are, that’s just expensive!
While I absolutely love Lush and will continue to shop there for many of my favorite items, I’ll likely never buy a bath bomb again now that I know how easy and inexpensive they are to make at home.
Homemade Bath Bomb Materials & Supplies
With just a few ingredients, you an also break free from spending way too much of your hard earned money on a magical ball of bathing heaven. You can easily create your own personalized bath bombs that will leave you feeling relaxed and rejuvenated. Here’s what you’ll need to make 8 bath bombs.
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Bath Bomb Ingredients
2 cups baking soda
1 cup corn starch
1 cup Citric Acid
1 cup Epsom Salt
1.5 tsp water
5 tsp melted Coconut Oil
15-20 drops of Essential Oils
Bath Bomb Supplies
You should be able to fin all of the ingredients at your local grocery store but if you have any trouble finding some of them I would recommend heading over to Amazon.
The first time I made these I found a few very small bottles of citric acid in the canning section of my grocery store but they don’t always have them in stock so recently I’ve been ordering a large bag of citric acid from Amazon.
Also, while I have a special bath bomb mold, you can use other types of molds as well. I’ve seen others use plastic Easter eggs, tennis balls, plastic ornaments or even muffin tins.
Now, let’s get on to the fun stuff and actually walk through how to make DIY Lush inspired bath bombs.
How to Make DIY Lush Bath Bombs
Step 1 – Add dry ingredients to bowl
To start making your DIY Lush bath bombs, begin by mixing the dry ingredients together in a bowl.
In a large mixing bowl, combine 2 cups baking soda, 1 cup corn starch, 1 cup citric acid and 1 cup Epson salt.
Use a whisk to thoroughly mix the dry ingredients together, ensuring there are no clumps. This mixture will serve as a base for your bath bombs and provide the fun fizzing effect when they come in contact with water!
Once the dry ingredients are combined, set the bowl aside and move on toe the next step in the process.
Step 2 – Combine wet ingredients in a separate bowl
In a separate small bowl, heat up 5 tsp of coconut oil until it is completely melted. For my microwave that takes 45-60 seconds. Then add the remaining wet ingredients (1.5 tsp water and 15-20 drops of essential oil) into the small bowl with the coconut oil.
Step 3 – SLOWLY add the wet ingredients to the dry ingredients
SLOWLY add and mix the wet ingredients into the dry ingredients. I can’t stress slowly enough. If you pour too fast, the wet ingredients will cause a reaction with the citric acid. What I like to do is whisk the dry mix while slowly adding a few drops of the wet ingredients at a time.
If you are like me, you’ll get impatient and just want to drop it all in at once but trust me, suffering through that extra 30 seconds of patience will make the perfect consistency and save you hassle down the road.
Once the wet ingredients are mixed in, your mixture should feel like damp sand.
Step 4 – Optional: Add color
This step is optional. What I like to do is separate some of the mixture into a few bowls and add different colors of food coloring to each bowl. This allows me to make mixed color bath bombs.
Be careful not to add too much food coloring. I recommend starting with a few drops and then adding more after you mix it in until you get your desired color. You could also get creative with mixing different dyes.
I would caution that you stay away from very dark colors as it may stain your bathtub. If you want white bath bombs you can skip this step.
Step 5 – Fill the Bath Bomb Molds
Fill each half of the mold with the mix pressing it down FIRMLY with some extra mix extending over the top of the mold. Firmly press the two halves together. I like to twist them a bit while pressing them together to squeeze the excess mix out from between the two halves.
Step 6 – Let the mold sit
Let the mold sit for at least 1 minute before removing the bath bomb. You may need to lightly tap on the mold to release the bath bomb but 9 times out of 10 it falls out fairly easily. While your first one sits, you can use your second mold to work on the next one.
Step 7 – Remove the bath bombs from the mold and let them cure
Let the bath bombs sit for 12+ hours before storing them. They will harden over this time. I typically remove them from the molds directly onto a baking sheet. I’ll let them cure overnight before putting them in the container that I store them in.
That’s it! Super easy and at a fraction of the cost of Lush bath bombs. Plus, you can get creative with the colors and shape of the bath bombs.
Try to use your bath bombs within 6 months. They tend to lose their fizziness and scent over time.
If it’s your first time and you’re wondering how to use a bath bomb, simply fill your tub with hot water and then drop the bath bomb into the tub. That’s it!
Bath Bomb FAQ’s
Bath bombs contain baking soda and citric acid which when submerged in water undergo a chemical reaction. This reaction produces a lot of carbon dioxide bubbles creating the fizzle effect that many love about bath bombs.
It is recommended that bath bombs be used within 6 months. While they don’t technically expire, an older bath bomb won’t be as effective as a new one since they lose their scent and ability to create the fizz in the water over time.
Bath bombs should be stored in an airtight container. It is important to keep them dry as they will absorb any moisture from the air which is often an issue in the bathroom.
Vibrant and dark colored bath bombs have the potential to stain a tub so to avoid this go with lighter more muted colored bath bombs.
Bath bombs typically cost between $1 and $2 per bath bomb to make. This would be for ingredients only and does not include the cost of the mold or other supplies.
More DIY Bath Projects
If you like this bath bomb tutorial, check out some of my other tutorials.