Essential Oils are extremely potent and volatile which means they rapidly evaporates or becomes vapors at room temperature.
What is the proper way to store Essential Oils?
Essential oils should be stores in amber glass bottles (never plastic as essential oils can eat through plastic) in a cool dry environment with the lid tightly secured and away from direct sunlight. Storing essential oils in the wrong conditions can cause the oil to become rancid or denature the chemical composition rendering it useless.
Treat Essential Oils as you would your medications. Keep them out of reach of children. Although they are 100% Natural substances; Essential Oils are still comprised of natural occurring chemicals such as terpenes which can cause harm if ingested.