Carrier oils, popularly known as base oils or vegetable oils, are used to dilute the essential oil before they are applied to the skin, body, or hair. These oils help in deeply nourishing and hydration when applied. Blossom Kochhar Aroma Magic Carrier Oils are free of nasties and benefits your skin, body and hair in many ways. These cold-pressed oils are a vital part of an Aromatherapy massage as they help calm irritation, redness, or any sensation that may occur due to direct use of essential oils.