What is the main ingredient in essential oils?
essential oils commonly include components derived from two biosynthetic groups, being terpenes (monoterpenes, sesquiterpenes and their derivatives) and phenylpropanoids (aromatic ring with a propene tail). essential oils are natural products with no synthetic ingredients. Fragrance oils are not natural products and do contain synthetic ingredients. Only essential oils can be used for aromatherapeutic purposes. Both can be used in home crafting projects, and both are safe to use when handled correctly.