Book excerpt: Himalayan Phytochemicals: Sustainable Options for Sourcing and Developing Bioactive Compounds provides a detailed review of the important medicinal plants which have already been discovered in the Himalayan region, outlining their discovery, activity and underlying chemistry. In addition, it supports a global shift towards sustainable sourcing of natural products from delicate ecosystems. Across the world, environmental destruction and overharvesting of medicinal plants are reducing and destroying multiple important sources and potential leads before researchers have the chance to discover, explore or synthesize them effectively. By identifying this problem and discussing its impact on the Himalayan region, Himalayan Phytochemicals: Sustainable Options for Sourcing and Developing Bioactive Compounds frames the ongoing global struggle and highlights the key factors that must be considered and addressed when working with phytochemicals from endemic plant sources. - Reviews both well-known and recently discovered plants of this region - Highlights methods for phytochemical extraction and analysis - Provides context to support a shift towards sustainable sourcing of natural products