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By Ingrid Bastiaans, 22 december 2022

Making bath bombs with essential oil DIY

Bath bombs can be made with essential oil, baking soda, cornstarch, nourishing oils, and citric acid.

They can be made in beautiful shapes and a beautiful color can be added to the bath bomb with a dye.

You can choose any color: from romantic red bath bombs to bright blue or green bath bombs.


You will need the following things to make bath bombs:


(enough for a silicone mold of 12 pieces (e.g. hearts, circles) or 6 mini cupcake molds or bath bombs.)

- 100 grams of baking soda (sodium bicarbonate) (baking soda)
- 50 grams of citric acid
- 20 grams cornflour (corn starch)
- 20 grams of cocoa butter (for chocolate lovers), coconut oil or another base oil as described below
- 20 grams of shea butter
- 50 dr. essential oil (to your own taste)
- Food coloring (optional): 2 – 6 drops depending on the strength of the color.



- A large and a small glass bowl

- A wooden or plastic spoon

- A whisk

- Thin rubber gloves if you have sensitive skin, the citric acid can burn slightly if you have small wounds

- Molds


Possibly dried flowers or flower baths such as roses, lavender, chamomile or marigold.


Making Bath Bombs

  1. Put on the gloves and get the stuff ready
  2. Stir bicarbonate of soda, citric acid, cornstarch, and 2 to 6 drops of food coloring into the bowl until no lumps remain.
  3. Mix the essential oil, food coloring and vegetable oil in another bowl. Preferably use shea butter, coconut oil or cocoa butter. Water-based dyes do not mix with oil and give specks in the bath bombs, if this is the desired effect, this is of course also possible.
  4. Add the oil mixture from point 3 to the other mixture from point 2. Knead into a sandy dough. Wear gloves for this if you have sensitive skin. It can already be a bit bustling here and there, but that only makes it more fun to do. This is not bad for the end result. Add dried flowers if desired. (you can use dried lavender or roses for this, for example)
  5. Press the mixture well into a mould. Use different shapes for this. These can be baking tins or bowls.
    Make balls, press as best as possible and let them dry on baking paper.
  6. Let the molds dry for 24 to 48 hours in a cool, dry place.
  7. Push them out of the molds or unscrew the dishes with a bath bomb and store them in a sealable jar.


Have fun with the bath bombs in a bath or foot bath.


Why do you use citric acid in bath bombs?

Citric acid has a soothing effect and functions as an acidity regulator and mild exfoliator.
It provides the effervescent effect in the bath bombs.
So you can't omit this ingredient.


Why use cornstarch in the bath bombs?

The cornstarch ensures that the bath bombs stick together well.


Other base oils to make bath bombs are:

- Sweet almond oil

- Grape seed oil

- Argan oil


By adding the basic oils to the bath bombs, the bath bombs are better for your skin.


Combining essential oils

Also make combinations of different essential oils in the bath bombs to get another bath ball out. This way you can combine Lavender well with Orange oil. Or you use our ready-made Spring mix. In the summer you can also mix Lemon oil with Mint oil or Peppermint oil.


Do you have any great tips for making bath bombs or questions about this?
Then post a comment below.

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