The color is bright red, and may darken over time with exposure to light. Applying a thick protective finish and protecting the tree from direct sunlight can help slow this color change. The trees can be harvested from a purple-red resin called dragon's blood, which was highly prized in the ancient world and still still in use today. Around the Mediterranean basin, the resin is used as a colorant, medicine, wool dye, adhesive for ceramic dishes, air freshener and lipstick. Musical instruments, furniture details and knife handles are made of wood.