Welcome to or back to the blog! I have a beauty DIY for you today and one that brings in a bit of crystal magic. I will show you how to make your own DIY geode bath bombs, perfect for having a magical bath or giving away as gifts.

So, I haven’t done a beauty DIY for a little while on the blog. I think the last bath bombs made, were these seasonal Autumn Bath Bombs. Well, that is about to change, as today i have another bath bomb recipe for you to have a go at making…DIY geode bath bombs to be in fact.

Now, these are special bath bombs, as they have a bath bomb base with a bath salt topping. Not only that but they bring in some luxury with cocoa butter and the divine smell of delicate rose/ Turkish delight. The best thing of all is they have the beautiful look of a geode crystal to add a bit of crystal magic to your bath.
In this post, I am emulating a rose quartz geode or a pink amethyst style geode, but the fragrance and colours used can be changed up to suit whatever type of geode crystal you like. I am totally into crystals, so why not take this and inspire some bath bombs?

So without further ado, here is how to make your own DIY geode bath bombs.
The post will be split into the bath bomb base and the bath bomb topping so that you can interchange the designs. I have taken inspiration from The Make-up Dummy and Soap Queen for these DIY geode bath bombs too, so be sure to check out their recipes and designs.

DIY Geode Bath Bombs

As I said, these bath bombs have been inspired by rose quartz geodes, and are a mix of a bath bomb and bath salt. This means the bath bombs may not fizz as much as your regular bath bombs. But, they do give the bath a luxurious feeling, and isn’t that the point of a pampering bath?
The recipe is going to be split into the bath bomb and the bath salt to make it easier to follow. Some items on the list below are affiliate links and will be marked with an asterisk (*). This means I may earn a small amount of commission should you make a purchase through this link, at no extra cost to you.

Bath Bomb Base:

• 1 cup (128g) Bicarbonate of Soda*
• 1/2 cup (64g) Citric acid*
• 1/2 cup (64g) Cornstarch
• 3 Tbsp (51g) Epsom salt*
• 1 Tbsp (17g) Coconut oil* – You can also purchase from the supermarket!
• 3ml Rose Fragrance oil – I bought this from Just a Soap
• 1/2 Tbsp (8.5g) Polysorbate 80*
• 99% Isopropyl Alcohol* in a spray bottle
• Mica Colourant*
• Bath Bomb Mould*

Salt Topper

• 2 Tbsp Epsom Salt
• 2 Tbsp Dead Sea Salt*
• 1- 2 Tbsp Pink Himalayan Salt*
• 2 Tbsp (34g) Cocoa Butter*
• Mica Colour
• 1/4 tsp (1.42g) Polysorbate 80
• 99% Isopropyl Alcohol
• Small Paintbrush
• Small container

Step 1 – Begin Making the DIY Geode Bath Bombs Base

The first thing to do is make the bath bomb base. In a large mixing bowl place in the bicarbonate of soda, cornflour and Epsom salt. Mix together until combined.
Then it is time to add the colour to the base. I chose to go for pink colour, as the geodes are inspired by rose quartz. In hindsight, I think a paler pink would have been better, but you live and learn! Add in a 1/4 teaspoon worth of mica at a time and begin adding, mixing until your desired colour. Now, the bath bomb mixture will look paler than it is going to be, so keep that in mind.

Place the bowl to one side and move onto combining the wet ingredients for the bath bomb base.

Step 2 – Combine Wet Ingredients

In a microwavable safe jug, place in the coconut oil. More than likely your coconut oil will be in a solid state, therefore this needs to be melted. Place the jug in the microwave on short 30 second bursts until the coconut oil melts fully.
To this, you then want to add in the fragrance oil. I have chosen a rose/Turkish delight fragrance. It is lovely and delicate, suiting the bath bombs perfectly. Use a pipette to add this in. Do not exceed the 3ml, as this has been calculated to be skin safe. In any recipe, the general rule is to add the fragrance oil as 1% for the total amount of the recipe. In this case, it works out at 3ml. Mix the coconut oil and fragrance oil.

Next, add the polysorbate 80 to the mix. This helps the oils and colour disperse through the bathwater. This means your skin will get the benefit of the coconut oil in the bath, rather than it clinging to the sides of the bath or sitting on top of the water. It also helps reduce any staining to the bathtub too! Mix, and you will notice the liquid thicken and go slightly cloudy.

Step 3 – Combine wet and Dry together

Then it is time to incorporate the oil mixture with the dry ingredients. Gradually add the oil to the dry ingredients and mix them thoroughly. Keep adding until all the oil is added. The mixture will feel slightly damp and clump together slightly, but not enough to form the bath bomb.

When the oil is added, it is time to add the final dry ingredient…citric acid. We add this in last to reduce the risk of it fizzing when adding the wet mixture. This is what helps give the bath bombs their fizz. Again, mix in until fully combined.

Then, it is time to get the correct consistency to the mix to form the bath bombs. This is where the 99% isopropyl alcohol comes in. You can also use witch hazel for this part if you desire. Spritz the mixture in one to two spritz bursts at a time, mixing quickly and thoroughly each time. You are looking for the bath bomb to be a damp sand consistency. You will know it is the correct consistency when you can squeeze some of the mixture in your hand and it maintains the form when passed from hand to hand. There should be little fall out of the mixture, with the clump keeping the shape.

Step 4 – Forming the Bath Bombs

Now that the mixture is ready, it is time to create the base for the bath bombs. Use one half of a bath bomb mould and begin filling this. Make sure the mixture remains loose and is slightly higher than the bath bomb mould. Then, use the remaining half of the mould, and rather than filling it to join together, as you would in regular bath bombs, use the outside part to push a dip into the bath bomb mixture. Apply even but firm pressure to the mould, as well as around the edges.
When you feel the mixture has been compacted enough, turn the mould upside down. Tap on the outside of the mould to gently release the bath bomb. You may find that there is some fallout, but this isn’t anything to worry about unless the bath bomb crumbles completely.

There may be some unevenness to the bath bombs, due to the method of forming them. Again, this isn’t a problem as it adds to the rock look of the geode crystal.

Place the bath bombs onto a lined tray (greaseproof paper or kitchen roll) and allow them to dry. They should harden over a few days. I left mine for approximately 3 days to ensure they were full hard and dry.

Making the Geode Topping

Whilst the bath bombs are drying out, it is time to make the salt topping for the DIY geode bath bombs.
Place the Epsom salt into a bowl, and the dead sea salt into a separate bowl. Leave the pink Himalayan out, as this already has the pink colour so doesn’t need to go through this process.

Then add in the polysorbate 80 to each bowl, which should be approximately 1/4 teaspoon worth. Mix this into the salts, and the salts should now be slightly damp. The polysorbate 80 will again allow the mica colourant to disperse through the bathwater.

Add in a small amount of your chosen mica colour to each bowl. You want the dead sea salts to be a lighter colour than the Epsom salt. Play about with the ratios until you have your desired shades. I combine a few pink colours with the Epsom salt to have a deeper pink shade. You may need to use the rubbing alcohol to dampen the salts more to combine the colour.

Once happy with the colours, place these into flatter bowls or dishes to dry out. Place cling film into the bowls, as this makes it easier to lift the salts out when using the topping. I left mine a few days like the bath bombs.

Step 6 – Paint the bath bombs

Before adding on the salt topping, it is time to decorate the outside of the bath bombs. To give them the rock look, mica powder can be made into ‘paint’ to decorate the outside. I chose to use rose gold for the outside of the bath bombs.

Place a small amount of mica into a container and spray the isopropyl alcohol to this. This should turn the mica into a liquid, which allows you to use it as paint. The alcohol will evaporate, leaving the colour on the outside of the bath bomb. Use a small paintbrush to paint the outside. You do not have to be neat or precise with this, as the geode rocks come in all different shades and styles. Allow this to dry before adding on the topping.

Step 7 – Add on the Salt Topping

To add on the salt, we need something for the salt to stick to. Hello, cocoa butter! Melt this down on short bursts of 30 minutes in a microwavable safe jug. Then, add 1/4 teaspoon of polysorbate 80 to aid with dispersing it through the water. Mix these until fully combined.

Next, select your now dry bath bomb and drizzle a small amount of cocoa butter onto the dip of the bath bomb. Swirl this around until all the surface is covered. Start adding on the deeper colour pink (Epsom salts) to the middle of the bath bomb. Then add on the light shade of the dead sea salts around this, creating a lighter ring around the darker colour. Finally, add on the pink Himalayan salt next towards the outer edge of the bath bomb. Keep adding the salts until the dip is filled. Add more cocoa butter if the salt requires it and allow it to dry. The salt should now be stuck to the bath bomb.

Step 8 – Final Touches

The final touch is to use gold mica powder and alcohol, creating ‘paint’. Paint a small amount around the edge of the bath bomb, and the odd drop onto the salts. This will create gold flecks through the salt and give the bath bomb a really pretty look.

Then the DIY geode bath bombs are complete and ready to be enjoyed. You can keep them for yourselves or give them away as beautiful gifts!

What do you think of these DIY geode bath bombs? Will you be making your own? Let me know in the comments below! I would love to see your creations if you decide to give these a go…tag me in your makes on Instagram or Twitter!
If you are looking for more bath bomb recipes, why not try out Avocado bath bombs, and Jo Malone inspired bath bombs? I also have a Jo Malone inspired bath salt recipe too!

DIY Geode Bath Bombs – Video

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DIY Geode Bath Bombs – Pin it!

If you enjoyed this post, why not share the love and pin it for later? You can see my Pinterest here too, for more creative inspiration!

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