The Bellebuono School of Herbal Medicine is one of the oldest herb schools in the country (offering courses since 2005 with Holly teaching since 1994) and is a member of the American Herbalist Guild. The BSHM is accredited for CEUs through the California Acupuncture Board (provider #1842).

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These online, evidence-based courses are for all students--beginners to clinicians. Some courses are for professionals supporting brain health so they can learn how to use herbal medicine and aromatherapy safely and effectively for depression, anxiety, trauma & PTSD, grief, panic attacks, postpartum needs, palliative care, OCD, and ADHD, and they teach the neuroscience behind Alzheimer's and Parkinson's.​ 

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Holly also provides a beginner, open-enrollment chemistry course for herbalists and courses and coaching for natural product entrepreneurs as well as coaching and courses for writers and authors.