Guaiac Wood is a small tree that is also known as guayacan. Guaiac Wood is one of the hardest and most resilient woods in the world. This wood has been used by Native Americans since 16th century in treatment of severe ailments such as herpes and syphilis. This tradition is where from the local name for Guaiac Wood – Palo Santo or Tree of Life – originates from. Guaiac Wood is typically used for engraving work and for the making of durable wooden posts. Its heartwood is brown, black or green, with elegant streaks. It also provides high-quality charcoal and a good timber.