The industry is peppered with suppliers that prey on the fact that many buyers may not know much about aromatherapy. Unfortunately, the industry lacks regulation, so many fall for marketing gimmicks, such as believing that terms like “therapeutic grade” and “certified pure” actually mean being held to a higher standard. Sadly, that’s not always the case. Here are some brands that offer quality essential oils that give you the most bang for your buck: Additionally, essential oil dilution is key for effective therapeutic benefit. In fact, nearly all essential oils, with the exception of lavender and tea tree, must be mixed with a carrier oil before using it on skin. Using a few drops of an oil straight from the bottle can cause skin sensitization, which may be in the form of an allergic reaction or rash. Properly diluting oils will make them last longer.