Tea Tree Oil
Tea tree has needle-like leaves. This small tree grows up to 7 metres in height. Tea Tree is a powerful immune stimulant. It is used in vapour therapy and it also helps with cold, measles, viral infections and sinus. Good for skin and hair, it protects your skin against acne, head lice and dandruff. You can blend it with lemon, nutmeg, cinnamon, rosemary, lavender, etc.