These incense sticks are handmade. They have a generous amount of essential oils with lemongrass and tea tree. The sticks can soothe your senses and leave you feel relaxed. The tea tree has a refreshing smell. It has antibacterial, antiviral, anti-fungal, and anti-inflammatory properties. Lemongrass has a citrusy aroma. It is a natural insect repellent. These incense sticks are safe to use as they are charcoal-free.