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Regencell Bioscience

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Hong Kong-based bioscience company researching and developing Traditional Chinese Medicine (TCM) formulas for ADHD and ASD.

Last updated September 27, 2026

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Overview

Regencell Bioscience is a Hong Kong-based bioscience company focused on the research, development, and commercialization of Traditional Chinese Medicine (TCM) for the treatment of neurocognitive disorders and degeneration, specifically Attention Deficit Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD). The company was founded by Yat-Gai Au, who serves as CEO, after he witnessed significant improvement in a family friend's son who had been diagnosed with ADHD and ASD and was treated by a Chinese medicine practitioner. Inspired by this experience, Au established Regencell, and James Chung, the company's Chief Operating Officer, quit his corporate career to join him. Together, they made it their mission to research and develop the formula and bring it to more patients globally. Regencell's stated goal is to save and improve the lives of patients, families, and caregivers and to be the market leader for the best treatment of ADHD and ASD globally. The company positions itself as a socially responsible organization guided by values of caring, accountability, respect, and enthusiasm. It operates from its office in Causeway Bay, Hong Kong, and welcomes correspondence from medical professionals and investors interested in its research. The company also established the Regencell Foundation in 2017, a non-profit organization dedicated to providing assistance to children with ADHD and ASD, and elderly people with dementia. Regencell Bioscience Limited is the legal entity behind the brand. The company's website describes its formula as a "natural formula that works" and provides patient case studies. It aims to bring its TCM-based formula to an international market with large unmet needs. The company's focus on TCM for neurocognitive disorders distinguishes it in the biotechnology and pharmaceutical landscape.

History

Regencell Bioscience was founded by Yat-Gai Au, who serves as CEO. The inspiration for the company came from Au's observation of a family friend's son who had been diagnosed with ADHD and ASD. The child was treated by a Chinese medicine practitioner and showed noticeable improvements after just one month of treatment. Within two years, the child's disorder had generally disappeared, and he was able to live a normal life. Later, in 2014, James Chung, who would become Regencell's Chief Operating Officer, was admitted as a patient to the same Chinese medicine practitioner for a different illness. He experienced the healing capability of the treatment first-hand and was inspired to make it more widely available. Yat-Gai established Regencell, and James quit his corporate career to join him. They made it their mission to research and develop the formula and bring it to more patients around the world. The company established the Regencell Foundation in 2017 as a non-profit organization dedicated to providing assistance to children with ADHD and ASD, and elderly people with dementia. Regencell Bioscience Limited operates from its office in Causeway Bay, Hong Kong, and aims to be the global leader in the research, development, and commercialization of Traditional Chinese Medicine for the treatment of neurocognitive disorders and degeneration, specifically ADHD and ASD.

  • 2017

    Regencell Foundation was established as a non-profit organization.

  • 2014

    James Chung was treated by a Chinese medicine practitioner and inspired to make the treatment more widely available.

Products and positioning

Market leader for the best treatment of ADHD and ASD globally, using a natural TCM formula.

  • TCM formula for ADHD and ASD

    A natural Traditional Chinese Medicine formula aimed at treating ADHD and ASD.

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