2 Cups Baking Soda
1 Cup Citric Acid
4 teaspoons massage oil ( or 2 teaspoons essential oil and 2 teaspoons olive oil)
Spray bottle with water
mold (60 mm 2 part plastic ball)
This amount only made 5 bath bombs. If I was making more I would buy the citric acid online in bulk. The small bottle you see pictured (1/2 cup) was $2.50. I purchased it from my local health food store.
Mix baking soda and citric acid in large mixing bowl. Mix very well! You can use an electric mixer if you like.
Add in 4 teaspoons of scented massage oil (or other combination of skin safe essential oil for scent and another oil for moisturizing the skin). The scent is personal, so start with a teaspoon or so and add more until you are satisfied. Mix well.
This next step can be a bit tricky because you don't want your bath bomb to start fizzing. Start by adding a couple of fine mist sprays of water to your mixture and mix well
You will continue spraying until the mixture will clump in your hand when squeezed. (I used 5-8 sprays, however this will depend greatly on your local climate)
Fill one half of your mold. Pack it tightly
Fill the other half of the mold and place them together---don't snap together. I slightly overfilled each half. When I pushed the two halves together they became a ball.
Gently remove the ball from mold. If I had problems with the ball coming out easily I dumped the mixture back into my bowl, added a mist of water (carefully), mixed well and then tried again.