How to Make a Bath Bomb Without Citric Acid

10,320

16

3

Ingredients-

Large glass or metal bowl

Smaller glass/metal bowl/cup

  • Whisk or metal fork
  • Spray bottle with tap water inside (optional)
  • Mold (I use a star mold, but an ice tray will work well)
  • Measuring cup
  • 1/2 cup baking soda
  • 1/8 cup cream of tartar
  • 1/4 cup cornstarch
  • 1/4 cup salt (Epsom salts)
  • 1 teaspoon essential oil (I use lavender and peppermint) (even perfume would work)
  • 1/2 tablespoon oil (any type of skin care oil) (I used Olive Oil) (optional)
  • 1 or 2 drops of food coloring (Add as necessary)
  • Lavender flower buds (entirely optional)

Additional notes- If you want multi coloured bath bombs (blue and purple, black and red, ect) then follow step 1 and the split the contents into two separate bowls. Follow step 2, but create two colors in two separate containers. Mix the two wet bowls to the two separate dry bowls (color A with A bowl A, ect). Follow step 5, but layer the colors. Follow the rest of the instructions the same.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Combine the Dry Ingredients Into Large Bowl

This will be the dry bowl. Mix the baking soda, cream of tartar, cornstarch, and salt (Epsom salts) into the larger bowl and mix thoroughly with whisk or fork. Add the lavender buds if you want.

  • 1/2 cup baking soda
  • 1/8 cup cream of tartar
  • 1/4 cup cornstarch
  • 1/4 cup salt (Epsom salts)
  • Large glass or metal bowl
  • Whisk/fork
  • Lavender buds (entirely optional)

Step 2: Combine the Wet Ingredients Into Smaller Bowl.

This will be the wet bowl. (see additional note after ingredients if you want multi colored bath bombs) This step can be altered, and you could easily add more or less depending on what you want. The color will become more white when added to dry bowl. Mix the essential oil, skin care oil , and 1 or 2 drops of food coloring (Add as necessary). Add less essential oils if you don't want the smell to be as strong. Be careful when adding the oils, as a little goes a long way.

  • 1 teaspoons essential oil (I use lavender and peppermint)
  • 1/2 tablespoon oil (any type of skin care oil) (I used Olive Oil) (optional)
  • 1 or 2 drops of food coloring (Add as necessary)
  • Smaller metal bowl or cup
  • Whisk/fork

Step 3: Mix the Contents of the Small Bow (wet) With the Contest of the Big Bowl (dry).

Combine the two mixtures and stir in gradually. If you dump the wet in all at once, then the bath bomb won’t fizz in the bathtub.

  • Contents of the wet bowl
    • 1 teaspoons essential oil
    • 1/2 tablespoon oil (any type of skin care oil)
    • 1 or 2 drops of food coloring
  • Contents of the dry bowl
    • 1/2 cup baking soda
    • 1/8 cup cream of tartar
    • 1/4 cup cornstarch
    • 1/4 cup salt (Epsom salts)
  • Whisk/fork

Step 4: If Its Too Dry

If the mixture of the two is dry (if you can't squeeze it into a shape and it won't hold), then spray with water or add by the drop. Mix with fork.

  • Spray bottle with water
  • Fork

Step 5: Put the Mixture Into the Mold You Chose

Be sure to pack it down very tightly.

Step 6: Let the Mixture Sit in the Mold Overnight to Set Completely.

Step 7: Take Out of Mold Carefully and Enjoy!

Be the First to Share

    Recommendations

    • Fashion Contest

      Fashion Contest
    • Reuse Contest

      Reuse Contest
    • Hot Glue Speed Challenge

      Hot Glue Speed Challenge

    3 Discussions

    0
    None
    ShannonH97

    Question 1 year ago on Step 7

    I need to make about 40 of these. How many larger size bath bombs would you say this recipe makes?

    0
    None

    Nice. Homemade bath bombs are always better than the stuff you find in a store.