Posted on by Jonny Parker

I live very close to the ocean. No, I mean, very close to the ocean. Practically inside the waves. So it’s extremely humid all the time, and impossible to make bath bombs. At least, not with any recipe I could find. So I had to think of a new way to create them because I really wanted to make some heart shaped Valentines bath bombs.

So, if you too live in a humid climate or close to the ocean and have had dismal results with your bath bombs, please try this waterless recipe with only three main ingredients, and enjoy being part of our special club.

Note: This recipe will only work for very humid climates, and will need added moisture in drier environments.

What I learned:

Most recipes call for a few milliliters of water spritzed onto the dry ingredients and mixed in, but in my experience, if I so much as showed my mixture a photo of water, it would react and start fizzing.

To aggravate things, I discovered the oil I was using is in fact a humectant, which was just helping my bath bombs suck up even more moisture from the air, and although they did set well, I was left with these crispy little biscuits that didn’t fizz at all – they just crumbled disappointingly in the water.

On to my recipe, using zero water and the right oil. What you’ll need:

  • 100g Sodium Bicarbonate (2 parts)
  • 50g Citric Acid (1 part)
  • 10-20 ml Coconut Oil
  • Silicon mold


  • Rooibos tea
  • Powdered food coloring

Combine your dry bath bomb ingredients in a bowl. Work the mixture with your hands. Make sure there are no clumps, and that it is mixed well. Add some powdered food coloring in teeny amounts at a time, and mix thoroughly.

Start adding coconut oil in small amounts. Use 1/4 teaspoon at a time, and work it in thoroughly with your fingertips. The oil might be buttery to start off with, but will soon turn liquid once you start working with it.

Squeeze a ball of the mixture in your fist. You’ll know it’s the right consistency if it stays together in a clump when squeezed. Stop adding oil at this point and pack the mixture into a mold. If you are adding Rooibos tea, sprinkle a thin layer in the mold before packing it.

Compress the mixture very firmly into the mold. Keep packing a compressing, until the bomb is the size you want, then pack and compress it some more!

Leave your bath bombs in the mold to dry out. The longer you leave them, the harder they will set. Mine were firm enough to handle after an hour, but I left them overnight to be safe.

Once they’ve set, seal your bath bombs in air-tight shrink wrap and remember to use them soon, as old bombs lose their fizziness.

You can fuse different shapes together by (carefully) wetting one surface with a finger dipped in water, and laying it on the second shape; then allow to dry thoroughly. I used little lollipop molds for the half-spheres, let them dry and then tapped them on the back to release the bombs.

There are so many ways to decorate, colour and scent your bath bombs, but with this recipe don’t add anything water-based that might make your ingredients start reacting. I also wouldn’t add something that isn’t beneficial to your skin, seeing as you’re going to be soaking your entire body in it!

Is this recipe safe for your skin?

Yes. Even better, it is good for your skin!

Citric Acid is an alpha-hydroxy acid (AHA), which can help enhance skin cell turnover. It’s like a natural exfoliant, without the scrubbing.

Sodium Bicarbonate has been proven to help soothe the irritation caused by yeast infections, episiotomies, hemorrhoids and other similar ailments. It can help soften the skin and promote healing.

Rooibos tea has natural antioxidants in it that help clear the skin and delay the aging process. It also helps ease symptoms of eczema, psoriasis, rash, and acne. It is known for its soothing effect on the skin and senses and is a good way to wind down before bed.

Coconut oil is known to help reduce scaring, stretch marks and preserve skin elasticity. It helps to soothe rashes and burns, remove makeup and smooth frizzy hair.

Head over to Bubbly Belle to order some of our one-of-a-kind bath bombs.