About me
Hernán Castro is a mycology influencer, educator, forager, and founder of Desert Alchemist, an Arizona-based company specializing in medicinal mushroom extracts and fungi education. For nearly a decade, he has been one of the leading voices in Southwestern mycology, teaching thousands of people about mushroom identification, cultivation, medicinal applications, extraction techniques, and ethical wild harvesting practices. Hernán regularly leads mushroom forays throughout Arizona's Sky Islands and monsoon-season forests, where he shares his deep knowledge of the region's uniquely diverse fungal ecosystems. He also contributes to the mycological community through specimen collection, documentation, and DNA sequencing of rare and potentially novel species.
Hernán's journey into medicinal mushrooms began after his father suffered multiple strokes, inspiring him to study functional fungi and extraction methods. Combining a background in chemistry with years of hands-on field experience, he has developed a practical, science-informed approach to mushroom education that resonates with both beginners and experienced enthusiasts.