However, the agarwood used for aromatherapy is also expensive, such as a few hundred yuan per gram, but it will be less. Another factor related to the price of agarwood is the origin and oil content. Hainan is the most expensive, followed by Hong Kong, Guangdong, Vietnam, Indonesia and so on.
The quality does not depend on the place of origin, but under the same conditions, Hainan agarwood is much better than other places of origin. This is why Hainan agarwood is called the king of incense.
Hainan agarwood commonly used in the market now belongs to artificial cultivation. Even better, people make incense and collect it for many years.
The worst is the kind planted artificially but perfumed with drugs, which greatly shortens the perfuming time, but the quality is not good, even a little poor.
Medicinal material characters
Irregular flake or helmet-shaped, and some are small fragments. The surface is uneven, with knife marks and occasional holes. Black-brown resin and yellow-white wood parts can be seen alternately, and the surfaces of holes and dents are mostly rotten wood. Solid, with prickly sections. The breath is sweet and the taste is bitter.