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Aromatherapy Bath Bombs Recipe

Bath Bath Bombs

I love bath bombs. Dropped into the tub, they fizz and release their nutritive and aromatic ingredients. They make bath time an even more special occasion to relax and cleanse. Children find bath bombs fascinating and fun to plunk into the tub. Adults love the aroma and visual appeal, and they make beautiful gifts.

Once you have made bath bombs a time or two, you will find them quite easy to make.

By making them yourself, you'll know exactly what's in them. Not all commercial or artisan-made bath bombs are all-natural, but you can make virtually all-natural bath bombs at home that fizz amazingly well. Making them yourself will also save you at least half the price of what equivalent bath bombs cost from artisans and bath bomb specialty stores.

AromaWeb's Bath Bomb Recipe, shown below, contains a few ingredients not yet described elsewhere on AromaWeb.

Bath Bath Bombs

Citric Acid: Citric acid is naturally found in citrus and other fruits/vegetables. As its name implies, it is acidic. Citric acid acts as a natural preservative and natural antioxidant and is found in an array of skin care products.

Baking Soda: Baking soda is the common name for sodium bicarbonate or bicarbonate of soda. Sodium bicarbonate is a naturally forming salt, but is most commonly manufactured synthetically. Because it is a salt that exists in nature, it's often considered natural, regardless of manufacture, and is used in natural products. In personal care, baking soda is known for its deodorizing and cleansing properties. Baking soda is a alkali that reacts wonderfully with citric acid in bath bombs.

Pearlescent Micas: Bath bombs don't need to be colored to be fun, and effective, but color can add an aesthetic touch to your creations. FD&C and D&C dyes have risks associated with their use, so I prefer to use pearlescent micas when I color my bath bombs. Pearlescent micas contain naturally forming mica powder colorized with minerals like iron oxides and titanium dioxide. Pearlescent micas can have synthetic color additives, so its best to purchase it from a reputable source and check the ingredients of each particular mica that you use.

Solubilizer: I've been making bath salts, oils and bath bombs since I first became passionate about aromatherapy over two decades ago. Back then and until more recently, it wasn't common practice to use a solubilizer. However, a dilemma is that both carrier oils and essential oils do not stay mixed in water (much like oil and vinegar salad dressing needs to be shaken before each use). What care happen, therefore, is that the essential oils can separate from the water and have the potential to come into direct contact with your skin. This leads to the potential of skin irritation or sensitization. To minimize this risk, it is therefore best to use a solubilizer when creating bath salts, bath oils and bath bombs. Solubol or Polysorbate 20 are suitable for consideration.

AromaWeb's Bath Bomb Recipe also includes essential oils, carrier oils and hydrosol. Click on each of these links if you'd like to know more about each of these ingredients.

Aromatherapy Bath Bomb Recipe Instructions

  • 1 cup Baking Soda
  • 1/2 cup Citric Acid
  • 1/4 tsp. Powdered Herbs or 1/8 tsp. Pearlescent Mica for color and visual appeal (optional)
  • 15 drops Essential Oil*
  • 1/4 - 1/2 tsp. Carrier Oil, preferably use a more stable oil like Jojoba since this recipe contains no preservatives (optional)
    Hydrosol or water (ideally in a spray bottle)
  • Hydrosol As Needed
  • Recommended:
    Solubilizer such as Polysorbate 20 or Solubol. (For the solubilizer that you choose, follow the usage guidelines provided by your supplier.)

*Reduce essential oil quantity if using more aromaticallly strong oils like geranium and avoid oils that pose a risk of skin sensitization or are contraindicated for you or the recipient.


I use large and small melon ballers (see photo) to form my bath bombs, but you can also experiment with ice, soap and candy molds of various sizes and shapes.


  • In a large, clean mixing bowl, add your dry ingredients. If possible, use a sieve or sifter when adding your dry ingredients to the bowl to ensure they are free of clumps. Mix well.
  • If using a solubilizer (recommended), follow the manufacturer's instructions to blend the solubilizer with the essential oil prior to incorporation into the recipe. You may need to tweak the amount of baking soida and citric acid in order to achieve the correct consistency.
  • Add your essential oil, drop by drop and stir into the dry ingredients. It is normal for the mixture to fix a little.
  • Slowly add your carrier/vegetable oil while mixing the ingredients with your hand.
  • Slowly add your hydrosol to the mixture while simultaneously blending it with your hands. Use a spray bottle to add the hydrosol or water to the mixture slowly, or add the liquid drop by drop if you do not have a spray bottle available.
  • It does not take much liquid to dampen the mixture to the degree that you need to form bath bombs. The mixture should stick together when pressed firmly. Be careful not too moisten the mixture too much.

Forming Your Bath Bombs

Press the mixture into molds, or use melon ballers to form your bath bombs. Set them onto wax paper to dry. Allow them to dry at least a day, depending on the time of year, temperature and humidity.

To Use

Drop a bath bomb into your bath for an aromatic and fizzy bath.


Keep your bath bombs in an air tight container or bag otherwise they won't fizz as well at bath time. Also keep your supply of citric acid in an air-tight container or it will lose its "fizzing" power.

Shelf Life

If you included carrier/vegetable oil in your bath bombs, they should hold up just fine for six months or so. If you did not use any oil, they will last a bit longer as long as they have been carefully stored away from air and humidity.

Do You Need the Ingredients Listed in This Recipe?

You can find the essential oils, other ingredients and packaging that you need by patronizing the fine companies that support AromaWeb with their banner advertising located throughout AromaWeb (See them all at a glance within the Advertiser Spotlight area) and the listings located within the Global and Regional Aromatherapy Business Directories. Many of AromaWeb's advertisers also expertly formulate their own ready-made products if you decide you'd rather not make aromatherapy products yourself.

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