Synopsis Testing of medicinal herbs and their derivatives like extracts, phytochemicals, oleoresins etc has all along been a difficult and controversial subject due to the complex nature of the active constituents of the medicinal herbs found wild or cultivated in various regions of the world. An effort is on to include, at least some testing methods, in various pharmacopoeias but there is still a wide gap between the medicinal herbs and their testing methods. This book containing 25 monographs of medicinal herbs fulfills that gap in knowledge base with detailed, ready to use and validated extraction processes and methods of testing to be performed in a well equipped testing laboratory.