Sunscreens, Skin, and the Science of Exposure | Dr. Renita Rajan | TEDxIIMBangalore
In this eye-opening TEDx talk, Dr. Renita Rajan, renowned dermatologist, pigment laser expert, and author of “Sunscreens for Skin of Color”, challenges popular myths around sunscreen use—especially for Indian and melanin-rich skin. With clarity, wit, and cutting-edge science, she explains why Indians don’t need sunscreens for cancer prevention—but absolutely do for pigmentation and photoaging. Drawing from over 20 years of dermatological practice and research, Dr. Rajan uncovers the genetic jackpot Indians have inherited through melanin—nature’s full-spectrum sun shield—and the flip side: a high predisposition to stubborn pigmentation. She introduces the emerging science of the “Exposome”—a groundbreaking framework that studies how external and internal exposures throughout life influence health and aging. From discussing how sunscreen formulations are evolving for skin of color to explaining why sleep, diet, and microbes matter more than we think, this talk connects dermatology with longevity, confidence, and future possibilities in personalized health. Whether you're a skincare enthusiast, aspiring doctor, or a curious thinker, this talk will transform how you think about skin, sun, and self-care. Dr. Renita Rajan is a leading dermatologist, researcher, and advocate for evidence-based skincare. She authored the newly released Sunscreens in Skin of Color (Springer Nature)—the only book focusing on UV protection for darker skin types. Heading RENDER Skin and Hair, a prominent laser dermatology clinic, and founding CHOSEN by Dermatology, she champions science-driven, personalized longevity solutions.
With over 2.2 lakh followers on Instagram, Dr. Rajan translates advanced research into everyday well-being, particularly on the exposome—how genetic “roots” and environmental “wings” (pollution, UV exposure, lifestyle) shape health. At TEDx IIM Bangalore, she’ll demonstrate how acknowledging our biological roots while shaping our surroundings can yield transformative personal outcomes. Blending scientific rigor and practical insights, Dr. Rajan redefines beauty, health, and sustainability in modern dermatology. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
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