There are NO companies, vendors, or manufacturers at this time that can positively guarantee that "any" Vapor Liquid currently on the market is safe for long-term use. Whether it is made using food flavorings or extracted tobacco (by itself, mixed, and/or blended) no one can truly prove that the inhalation of these products are any safer than smoking. The Vapor Industry is reasonably new and therefore lacks the many years of data sufficient to make safety or health claims of any kind. If you are NOT a smoker or vaper, our advice is " do not experiment ". Fresh air and clean lungs will always be your best friend.