The #1 Cause of Wrinkles You’re Ignoring (Dermatologist Explains)

Dr. Dray, a board-certified dermatologist, breaks down the science behind sunscreen, ultraviolet radiation, and how sun exposure drives premature skin aging. In this in-depth video, she explains why most of visible facial aging is linked to UV exposure and what you can do to protect your skin effectively. From wrinkles and dark spots to uneven texture and loss of elasticity, learn how UVA, UVB, and even visible light contribute to photoaging. Dr. Dray also reviews the latest research on sunscreen’s role in preventing and even improving signs of sun damage, along with practical tips for daily sun protection. This video covers everything from the basics of UV radiation to advanced topics like tinted sunscreens, iron oxides, and emerging filters designed to protect against visible light. Timestamps 0:00 Intro 0:23 How UV rays cause skin aging 2:59 Skin aging from UV rays outdoors vs indoors 3:48 Skin aging from blue light 4:19 Does sunscreen actually prevent wrinkles? 6:42 Is it too late to start wearing sunscreen? 7:08 Tinted sunscreen for age spots 8:32 Sunscreens with triasorb for age spots 9:25 Tinted makeup and foundation for age spots 9:59 How blue light impacts skin aging in different skin tones 10:32 Bottom line with caveats 15:20 Outro What you will learn How UVA and UVB rays damage collagen and accelerate wrinkles Why incidental sun exposure, even indoors, contributes to aging The role of visible light and blue light in hyperpigmentation Whether sunscreen can actually prevent and reverse photoaging How tinted sunscreens and iron oxides may help protect against discoloration Why sunscreen alone is not enough and what other sun protective behaviors matter Key takeaways Daily sunscreen use can significantly reduce signs of skin aging Broad spectrum protection is essential for both UVA and UVB defense Tinted sunscreens may offer added protection against visible light, especially for deeper skin tones Consistent use and proper reapplication are critical for effectiveness Sun protection includes hats, sunglasses, shade, and protective clothing References Mac-Mary S, Sainthillier JM, Jeudy A, Sladen C, Williams C, Bell M, Humbert P. Assessment of cumulative exposure to UVA through the study of asymmetrical facial skin aging. Clin Interv Aging. 2010;5:277-284. PMID: 20924436; PMCID: PMC2946854. Guan LL, Lim HW, Mohammad TF. Sunscreens and Photoaging: A Review of Current Literature. Am J Clin Dermatol. 2021;22(6):819-828. doi: 10.1007/s40257-021-00632-5. PMID: 34387824; PMCID: PMC8361399. Hughes MC, Williams GM, Baker P, Green AC. Sunscreen and prevention of skin aging: a randomized trial. Ann Intern Med. 2013;158(11):781-790. doi: 10.7326/0003-4819-158-11-201306040-00002. PMID: 23732711. Grimes P, Halder R, Verschoore M, Wangari-Talbot J, Pillai K, Foltis P, Bouez C, Galdi A, Abdelhalim D, Liao IC, Zheng Q. Long-Term Benefits of Daily Photo-Protection With a Broad-Spectrum Sunscreen in United States Hispanic Female Population. J Drugs Dermatol. 2020;19(3):236-242. PMID: 32550692. For more dermatologist-reviewed skincare tips, subscribe for new videos every week. FTC: This video is not sponsored. Links are commissionable, meaning I may earn commission from purchases made through links. 💜Shop my Amazon store https://o.bttn.io/0BwiPWFIZLG 💜Follow me on liketoknowit https://www.liketoknow.it/drdrayzday 💜Social media Instagram @drdrayzday Pinterest   / drdrayzday   Facebook @DrDrayzDay Twitter: @drdrayzday Tiktok: @drdrayzday Disclaimer: This video is not intended to provide diagnosis, treatment or medical advice. Content provided on this Youtube channel is for informational purposes only. Please consult with a physician or other healthcare professional regarding any medical or health related diagnosis or treatment options. Information on this Youtube channel should not be considered as a substitute for advice from a healthcare professional. The statements made about specific products throughout this video are not to diagnose, treat, cure or prevent disease.