Kalpna Kay Durairaj

Kay Durairaj, MD, is a board-certified facial plastic surgeon, educator, researcher and practitioner who leads Beauty By Dr. Kay, a Pasadena-based aesthetic practice. She is recognized for her clinical expertise in facial rejuvenation, injectable techniques, liquid rhinoplasty and bioregenerative therapies. Dr. Kay lectures internationally on practical, evidence-based approaches that bridge aesthetic medicine with longevity science. She hosts the podcast “Beauty Bytes with Dr. Kay: Secrets of a Plastic Surgeon,” where she interviews clinicians, scientists and biohackers about skincare, injectables and advances in anti-aging medicine. Dr. Kay develops KD Skin, a clinician-driven product line focused on barrier repair and hydration, and she integrates topical and procedural therapies to optimize outcomes. Her research includes AI-assisted facial analysis and clinical trials on biostimulators, PDGF and minimally invasive modalities. She serves on panels and organizes educational tracks at major meetings, emphasizing safety, measurable outcomes and patient-centered protocols. Dr. Kay combines surgical skill with a systems approach to longevity and wellness. She is known for her clear teaching style, clinical rigor and commitment to advancing the science of aesthetic medicine. She serves as vice chair of Huntington Hospital’s Department of Head & Neck Surgery and holds numerous leadership roles in the industry. A seasoned international lecturer, she has delivered more than 50 national and international presentations and published clinical studies. Dr. Kay mentors emerging clinicians through Modern Aesthetic Theory & Artistry and directs live demonstrations.