What I used:  3 tbsp. Epsom salt (or coarse sea salt) 1/2 cup baking soda 1/4 cup cornstarch or arrowroot powder 1/4 cup citric acid 1 tbsp coconut oil spraying bottle with witch hazel or water liquid food coloring essential oils (optional) Homemade Bath Bombs, Bath Bombs Diy, Homemade Bath Products, Homemade Gifts, Diy Gifts, Shower Bombs, Homemade Cosmetics, Homemade Recipe, Homemade Face