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Classical Formula Architecture

Our formulas have evolved from the classical medical texts

Chinese medicine is a highly sophisticated science and deeply spiritual art form. Chinese herbal formulation is based on simple foundational principles that are often ignored or misunderstood in the construct of modern TCM education. With Classical Pearls’ formulas and the core educational concepts behind them, the goal is to preserve the true clinical power and efficacy of Chinese herbal medicine.


Each of the flagship Legacy Series remedies incorporates principles of classical formula design synthesized from the ancient texts of Chinese medicine and a variety of classical lineage approaches. The Heritage Series remedies constitute unmodified traditional and classical formulas, used as standalone remedies or in conjunction with the Legacy Series. 


Based on three decades of research and clinical experience, tightly structured classical formulas have been selected, combined or modified to specifically address the complex diseases of our time. It is the sincere hope of Classical Pearls that the study and use of the two series of products can help East Asian medicine practitioners increase their clinical efficacy and gain a better understanding of the time-honored principles of alchemical wisdom that are gradually being forgotten.


Herbal medicine was once the most important modality to cure serious diseases. Today, the intricate alchemical principles and the experience based approach of traditional herbal science has become overshadowed by laboratory parameters, often to the detriment of clinical results. It is both the vision and mission of Classical Pearls to launch a return to the classical and clinic-based roots of Chinese herbal medicine.

Each of the patent herbal formulas in the Legacy Series is designed with these simple, classical principles of Chinese herbalism:

  • Emphasis on the alchemical integrity of classical formulas
  • Focus on the synergistic “fusion” effect of herb combining
  • Integrating the deepest classical level of understanding organ network physiology
  • Attention to inherent yin-yang balance in formula design
  • Flexible, experience based modification approach that addresses the clinical problems of our day
  • Preservation of effective herbal approaches that are in danger of getting lost
  • Highest standards of ingredient purity
  • Promotion of traditional alchemical growing techniques
  • Utilization of modern production techniques for the specific purpose of holistic full-spectrum ingredient extraction

Built on Research and Experience

Heiner Fruehauf, PhD, LAc is the Founding Professor of the College of Classical Chinese Medicine at National University of Natural Medicine, and the clinical director of the Hai Shan Center for Natural Healthcare in the Portland, Oregon area. He is an experienced herbal practitioner who has specialized in the treatment of chronic and recalcitrant diseases for three decades. He is also an international author and lecturer who stands at the forefront of a global movement aimed at restoring the clinical efficacy of Chinese medicine by deepening the understanding of its theoretical foundation.


Classical Pearls represents the culmination of his clinical and scholarly experience, as well as the passing of an herbal legacy through him and the many master practitioners he has encountered during a life-time of research in China and Japan, including Dr. Zeng Rongxiu (of the Tian Heming lineage), Dr. Lu Chonghan (of the Sichuan Fire Spirit School lineage), Dr. Liu Lihong, Dr. Wu Sheng'an, Dr. Zheng Zhiwen, and Dr. Deng Zhongjia - all prominent teachers and Chinese medicine physicians.


For more information about Prof. Fruehauf's scholarly work and classical Chinese medicine, as well as the work of his teachers, colleagues and other associates, please visit classicalchinesemedicine.org.