In the flagship store of Taobao Forest Yashe, I spent 120 to buy a promotional combination of tea tree and lavender essential oil. After using it, I found several problems and suspected that the essential oil was fake. The drowsiness and allergic reaction of used essential oils should not be used as the discrimination between true and false, although lavender and tea tree are the mildest essential oils, because different people have different constitutions and different sensitive sources.

Essential oil is insoluble in water, and pure essential oils will disperse into particles when dropped into water, and impure oil will become floating oil. Although essential oil is called oil, good essential oil should not feel greasy when applied to the skin. You can apply it to your skin and stick it with a paper towel. If there is oil stain on the paper towel, it means it has been diluted with base oil. There are also essential oils that will not leave oil stains after being dried on paper towels.