Halland Chen

Dr. Halland Chen is a double board-certified physician and internationally recognized leader in longevity and regenerative medicine. As the Founder of Cell Theory, he merges clinical practice with frontline cellular research, focusing on NAD+ biology, metabolic resilience, and healthspan extension. Over more than a decade, Dr. Halland has developed a reputation for precision-driven, patient-centered longevity care—working with individuals, innovators, and high-performance populations seeking measurable improvements in cellular function and long-term wellness.

His work bridges scientific rigor with accessible innovation, translating emerging research into practical therapeutics that support repair, renewal, and optimized aging. Through Cell Theory, he continues to advance evidence-based interventions that reflect the next frontier of human performance and lifespan potential.