Bathing with bath oils isn’t the same as applying undiluted oil to the skin because bath oil is absorbed directly into the skin (along with moisture from the water); oil applied to the skin has the unfortunate tendency to stay on skin’s surface, which results in a greasy feeling, and provides little nourishment for skin. Bath oils are also less likely to clog pores or cause breakouts than oil that is simply slathered on. Therefore, bathing with oils is vastly superior to simply rubbing them into skin.
Simply put, bath oil is a mixture of essential oils, for fragrance, and carrier oils. Carrier oils are absorbed into the skin, providing nourishment and moisture; jojoba, coconut, sesame and olive oils are all good examples of carrier oils. Carrier oils are so named because they provide a good base for the essential oils, which allows the scent to last longer and not dispel as quickly. The essential oils are mixed in with the carrier oils in extremely small quantities, and are what gives the bath oil aromatherapy benefits, and a pleasurable scent.
There is an almost infinite number of combinations you can make with all of the available carrier oils. Your choice of which carrier oils to use will depend on what properties you want your finished product to have; you wouldn’t use the same oil for both dry, itchy skin and acne-prone skin, for example. This is a great recipe for a very basic bath oil, which you can scent with your own preferred combination of essential oils.
1.5 oz. olive oil
3 oz. almond oil
1 oz. sesame oil
1 oz. canola oil
oz. wheat germ oil
A good rule of thumb is to use approximately 15-30 drops of essential oil (total, not per scent) for each ounce of carrier oil. For the above recipe, you would want to use anywhere from 105 to 210 drops, depending on how strong you want the scent to be, and what oils you’re using.
Mix all of the carrier and essential oils together, and put in any desired additives, such as colorants or dried herbs. Pour the mixture into a container with a tight lid, shake well, and store the bath oil in a cool, dry place. When you want to use your bath oil, use approximately one teaspoon of the mixture in a tub full of bath water.
Make sure that you test your bath oil on a small area of skin before using them in the bath water, to ensure that you won’t have an allergic reaction to them. If you are selling or giving away your oils, there should be an exhaustive ingredient list on the packaging so that anyone who uses it can look for anything to which they might be sensitive or allergic.