Rosewood is a small evergreen tree now controlled as an endangered species by the government of Brazil. This makes pure rosewood oil more expensive. It also makes it harder and harder to obtain.
Rosewood Blend is a blend of pure essential oils made to mimic the aroma and healing properties of rosewood oil. Although this is a blend of pure essential oils, with no chemical constituents, it does not have the exact same therapeutic properties as rosewood oil. However, the aroma of rosewood blend is very similar to that of pure rosewood.