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
More from TED
- 15:56Labirentteki Değerli Yalnızlık | Özlem Gürses | TEDxBilkent UGazeteci, yazar ve televizyon sunucusu Özlem Gürses, modern hayatın karmaşası içinde kaybolan bireyselliğin ve yalnızlığın düşündüğümüzden çok daha güçlü bir araç olabileceğini ve bize yeni kapılar açabileceği hakkında konuşuyor. Kendi labirentimizde yol almanın düşündüğümüzden daha çok önemli olduğunu ve kendi labirentimizde kalmaktan korkmamaız gerektiğinden bahsediyor. 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 Özlem Gürses was born in Ankara on August 18, 1970. After completing her primary and high school education at TED Ankara College, she entered the Department of Urban and Regional Planning at METU Faculty of Architecture. She moved to Istanbul during her master's degree and entered the media world. Gürses has written many articles and books on literature and culture. She has also given speeches at various conferences and seminars on Turkish literature and culture. Gürses began her media career as a reporter at ATV News Center and later appeared on programs such as "Gece Hattı" and "Kırmızı Koltuk" on Star TV. She worked as an editor and presenter on programs such as "20. Saat", "13 Agency", "Bıldıgın Gibi Değil" and "Burası Haftasonu" on Habertürk TV. She served as assistant news director and on-screen presenter on the "Ana Haber" program on Kanal 1. 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
- 7:38How to overcome procrastination | Shashva Dedhia | TEDxRWA YouthShashva is here, not to talk about the future, but about the first step to reaching it”. Yes, procrastination is an everyday problem, which affects the smallest things like grocery shopping, to the biggest, like submitting your end-of-year exam. Fortunately, according to Shashva, there are some quick and easy techniques, which can make procrastinators seasoned work pros. Because, remember, as Shashva says, the best time to innovate and grow, is now. Shashva Dedhia is a passionate student of Grade 9 at RWA. He enjoys learning and is always looking for opportunities to meet new people. He is a budding photographer, as well as being an avid reader and also working on paper-craft, namely quilling. He values his academics and his extra-curricular, which is why he practices badminton and cricket. His favorite subject areas include math, science, and history. He is quite competitive and likes to succeed at what he does. 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
