Lavender is next up! Known as a must-have oil because of its wide variety of uses, Lavender actually means “to wash” in Latin, and may be the most widely used essential oil in the world. It is frequently used to reduce the appearance of skin imperfections when applied topically. Powdery, floral, light, and versatile, what’s not to like about lavender? Keep it on hand to help soothe occasional skin irritations, including those resulting from encounters with insects or a little too much time in the sun.