With over 20 years of experience in plant-based medicine, Goldthread Herbs founder William Siff, uses his knowledge as a clinician, educator, herbal products formulator, and public speaker to show people how to incorporate herbs into everyday life as the foundation of self-care and optimum health.

A seasoned ethnobotanist, William’s extensive travels have allowed him to cultivate medicinal projects all over the world whilst he infuses the wisdom of the ancient healers with modern practicality. His approachable, engaging style make herbs an accessible ally to anyone who seeks them.

William’s ultimate mission is to bring plants to the people. To fulfill this, he has formulated a plant-rich tonic line and created a grass-roots educational program called “Plantventures” around Los Angeles. Goldthread’s plant-based tonics are expertly crafted to incorporate a healthful dose of herbs and encourage people to drink more plants as a part of their daily practice. William creates experiential and intimate events where he guides guests on a journey, exploring plant-medicines from around the globe.

William is an expert in the Ayurvedic and Traditional Chinese medicine systems and is considered an innovator and champion of the herbal lifestyle.