These oils are designed to be worn directly on the skin at pressure points as perfume or cologne would be worn. You can also place a few drops in an oil burner or diffuser to fragrance your room or your entire home. These oils are FREE FROM alcohol, phalates and sulfates. Please place a small amount on skin first as a test to be sure you are not sensitive to undiluted fragrance and essential blends. Each bottle contains 1 oz undiluted fragrance oil with included dropper for easy application.