Raven's Flight essential oils, are true, pure essential oils. It's always important to remember that there is no regulatory agency that vouches for the purity of essential oils on the market. Often what is labeled an essential oil, might be a portion of essential oil diluted with another natural oil such as sweet almond. Wholesalers and retailers can label these oils as "pure", "essential" or "natural" and not actually be lying even though they are misleading the consumer as to the purity of their product. We buy from only reputable wholesalers and distributors that we have have been buying from for many years. MSDS (material safety data sheets) are available on request. Prices vary and often change for a variety of reason.