Not all ready-made aromatherapy products labeled with the word aromatherapy are pure and natural. Products that contain artificial ingredients do not provide true aromatherapy benefits. At worst, they provide no benefit or be harmful. At best, they provide only a fraction of the benefit that natural products supply. Buyers seeking true aromatherapy products must look at the ingredient label to ensure that the product does not contain fragrance oils or unpure (chemical) components. A general rule-of-thumb is to be wary of products that do not list their ingredients and those that do not boast of having pure essential oils (look for products that contain pure essential oils on their ingredient list and avoid those that have words like fragrance). A note, however, is that some sellers of good-quality aromatherapy blends do not list their ingredients because they are worried that others may copy their creation. By asking the seller more about the blend, and listening to how they respond, you should have a better idea about the quality of the blend being sold. Good suppliers should be happy to provide you with a list of the ingredients. They understand that some individuals must avoid particular oils due to health problems.