High-quality essential oils are well packaged and come in small dark-colored glass bottles. Unfortunately, the low quality, synthetic and fake oils are also sold in this way. Which can make spotting the fakes extremely hard in an oversaturated market. However, all is not lost. Reputable essential oil companies provide helpful resources to enable you to distinguish their high-end product above all others. You just need to know what to look for and be prepared to do a little research.