Litsea cubeba, also known as May Chang, is a tree native to Southeast Asia and has many potential health benefits: 
Antibacterial: Litsea cubeba has antibacterial properties and can help prevent infections or aid in the recovery from infection. 
Anti-inflammatory: Litsea cubeba has anti-inflammatory properties. 
Immune system: Litsea cubeba supports boosting the immune system by stimulating the lymphatic system. 
Skincare: Litsea cubeba essential oil can help with acne, dermatitis, greasy skin, and spots. You can add a few drops to your moisturizer or cleanser, or use it in a homemade serum. 
Blood Pressure: Litsea cubeba shows signs of helping decrease blood pressure and being supportive to the pulmonary system.
Respiratory health: Litsea cubeba can help with coughs, colds, bronchitis, asthma, and allergies. 
Mood: Litsea cubeba can help with anxiety, depression, and fear. It can also help you relax and or boost your mood. 
Pain relief: Because of the inflammatory benefits Litsea cubeba can help with joint and muscle pain. 
Litsea cubeba essential oil has a lemony aroma and is often used in perfume and cosmetics. I find that the scent is somewhere between Bergamot and Lemongrass.
You can use it in a diffuser, or add a few drops to your shampoo, body lotion, or liquid body wash.