Use no more than 15 drops of essential oils to 30 ml of carrier (bubble bath)!
(12 drops being very safe.)
Soap Flakes or Grated Soap–2 cups
Glycerin–1/4 to 1/2 cup
Shampoo or Liquid Dish Soap–2 cups
Essential Oil of Choice
Mix the soap flakes, water and 2 tbsp glycerine in a pot over low heat, stirring occasionally until the soap has dissolved. (Store this liquid soap in a covered container, used as an all-purpose soap or hand soap.) In a bowl, add 2 cups of this mixture to the rest of the glycerine, shampoo and essential oil. Pour into a one litre container. Store covered at room temperature.
When you’re ready to bathe, add about one cup to your tub as it’s filling.