Green tea was originally made in China for its health and therapeutic benefits. Soon, the use of green tea became commonplace in other Asian countries too. Now, the whole world sings praises of the health and beauty benefits of green tea. Green tea is usually made from Camellia sinensis leaves which have not gone through the same oxidation withering process used to make black tea. Camellia sinensis is a type of small tree or evergreen shrub. There are many types of green tea. They differ because of the type of Camellia sinensis used, the condition in which they are grown, production processing, horticultural methods, and time of harvest.