Essential oils are the life force of the plant. They are subtle, volatile liquids distilled from plants, shrubs, flowers, trees, roots, bushes and seeds containing hormone-like properties and natural antiseptics. Each oil has its own curative power on the body and mind. Essential oils are not oily, but are more like water. They are generally transparent and can be various colors. They are soluble in alcohol, oils and fats, but not water. Essential oils can have a shelf life up to six years. They contain oxygenating molecules which transport nutrients to the cells of the body. These molecules can help the body receive and assimilate nutrients to maintain health.