Tasia-Leigh Deleon | Manager of Cosmetovigilance
CHANEL

Tasia-Leigh Deleon is the manager of Cosmetovigilance for CHANEL’s US division. With nearly two decades of experience in healthcare, Tasia has built a dynamic career that bridges clinical practice, pharmaceutical expertise, and global business operations. She began her professional journey as a pediatric nurse, where her compassion and dedication shaped the early years of her career. Eager to expand her horizons, Tasia transitioned into the pharmaceutical industry, quickly rising to become the lead aggregate report writer. In this role, she demonstrated a keen eye for detail and a deep understanding of regulatory requirements. Her leadership was instrumental when her company went global, as she project-managed and implemented the Periodic Safety Update Report (PSUR) process—ensuring compliance and streamlined reporting across international markets. Three years ago, Tasia embraced a new challenge by joining CHANEL. Her blend of clinical knowledge, regulatory expertise, and project management skills have made her a valuable asset to the team, continuing to drive innovation and excellence in every endeavor. As part of CHANEL’s Cosmetovigilance Team, she is responsible for managing projects that support the safe and effective use of CHANEL’s products, while upholding the highest standards of regulatory compliance.