PureZen™

Created by Dr. David Brownstein, Dr. Richard Ng, and Dr. Jeffrey Nusbaum, trusted leaders in holistic medicine.

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About Us

The Center for Holistic Medicine, PLLC in West Bloomfield, Michigan was founded by three of the most recognized physicians in holistic and integrative medicine: Dr. David Brownstein, Dr. Richard Ng, and Dr. Jeffrey Nusbaum. As conventionally trained and licensed Family Physicians, they combine holistic and conventional approaches to patient care with more than 30 years of clinical experience.

Our CHM team also includes Dr. Hailey Brownstein, Dr. Jessica Brownstein, Dr. Cynthia Lepak, Jessica Gross, PA-C, and Taya Hamilton, APRN, who continue our commitment to patient-centered holistic care.

At the Center for Holistic Medicine, our mission is to promote wellness, support the body’s natural healing abilities, and help patients address the underlying causes of illness through personalized, integrative care. We believe the body has a remarkable capacity to heal when properly supported through nutrition, lifestyle, and evidence-informed holistic therapies.

This philosophy became the foundation for PureZen™ Health.

PureZen™ Health supplements are thoughtfully developed by Dr. Brownstein, Dr. Ng, and Dr. Nusbaum based on decades of real-world clinical experience and patient care. Each formulation is designed with a focus on quality, purity, and practical wellness support using carefully selected ingredients.

At CHM, we view healthcare as a partnership. Our goal is to provide education, guidance, and support to help individuals take an active role in their wellness journey.

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Established Since 1998

For more than 25 years, the Center for Holistic Medicine has been dedicated to helping patients address the root causes of illness through personalized, integrative care grounded in clinical experience and evidence-based medicine.

Physician-Developed Formulas

Our supplements and protocols are developed by experienced physicians with decades of clinical experience in holistic and integrative medicine.

Practitioner-Grade Quality

Every PureZen™ formula is carefully selected and developed with a focus on purity, effectiveness, and clinical relevance — using high-quality ingredients trusted in real-world patient care.