The main function of lavender is to promote skin metabolism and regeneration. In addition, it can relieve fatigue and help sleep. If you massage the lower abdomen, you can relieve skin pressure. As for the body function, small molecules of essential oil can affect the blood circulation of the body, but if you want to relieve fatigue and help sleep, you'd better use aromatherapy. In addition, pure lavender can't touch the skin in a large area. If it is used in large areas, please dilute it with base oil. 6- 10 drop of lavender can be added to 10ml of body base oil, but it may not matter if it is not pure, or if the concentration is high, please add base oil according to the concentration, such as 20% lavender, and 5 drops are equal to 1 drop of pure lavender.