We use pure peppermint essential oil for our soothing peppermint bath bombs. These are great for sore muscles and is a great gift for anyone on your list. Ingredients: Sodium Bicarbonate, Citric Acid, Cornstarch, Coconut Oil, Potassium Bitartrate, Epsom Salts, Polysorbate 80, Essential Oils and/or Fragrance Oils, Micas and/or Lake Dyes. SLSA FREE PHALATE FREE GUILT FREE