Unwrap the truth about your food 👉 ⁠Get the ZOE app https://joinzoe.onelink.me/XebC/9r7grdmf From collagen powders to $100 creams, the skincare industry thrives on promises. However, many of the products we rely on for younger, healthier skin are built on shaky evidence. In this episode, world-renowned dermatologist Professor John McGrath breaks down what’s real and what’s not. We explore how skin truly ages, what happens beneath the surface, and why some popular treatments don’t do what they claim. John dismantles three of the biggest myths in skincare, including the truth about SPF, collagen, and “bio-active” ingredients that never make it past the top layer of your skin. Professor McGrath is a Professor of Molecular Dermatology at King’s College London and editor of the British Journal of Dermatology. His research has transformed how we understand genetic skin disorders and vitamin D’s role in skin health. This conversation is packed with surprising insights - and one daily step that really does support healthier skin as you age. 🌱 Try our new plant based wholefood supplement - Daily30: https://zoe.com/daily30?utm_medium=zoe_podcast&utm_source=podcast_platform&utm_campaign=d30 Follow ZOE on Instagram | https://www.instagram.com/zoe/ Timecodes 📚Books by our ZOE Scientists The Food For Life Cookbook | https://amzn.to/4amfIMX Every Body Should Know This by Dr Federica Amati | https://amzn.to/4blJsLg Food For Life by Prof. Tim Spector | https://amzn.to/4amZinu Ferment by Prof. Tim Spector | https://amzn.to/4hU1Df5 Free resources from ZOE: Live Healthier: Top 10 Tips From ZOE Science & Nutrition | https://zoe.com/freeguide?utm_medium=podcast&utm_source=podcast&utm_campaign=freeguide Gut Guide - For a Healthier Microbiome in Weeks | https://zoe.com/gutguide?utm_medium=podcast&utm_source=podcast&utm_campaign=gutguide Better Breakfast Guide | https://zoe.com/breakfastguide?utm_medium=podcast&utm_source=podcast&utm_campaign=breakfastguide Mentioned in today's episode Genome-wide association study identifies 143 loci associated with 25 hydroxyvitamin D concentration, Nature Communications (2020) http://nature.com/articles/s41467-020-15421-7 Topical tretinoin for treating photoaGenome-wide association study identifies 143 loci associated with 25 hydroxyvitamin D concentration | Nature Communicationsging: A systematic review of randomized controlled trials, Int J. Womens Dermatology (2022) http://nature.com/articles/s41467-020-15421-7 Sunlight Has Cardiovascular Benefits Independently of Vitamin D, Blood Purification (2016) https://karger.com/bpu/article-abstract/41/1-3/130/328295/Sunlight-Has-Cardiovascular-Benefits-Independently?redirectedFrom=fulltext Have feedback or a topic you'd like us to cover? Let us know here: https://gf6hx47iu5g.typeform.com/topicsuggestion Episode transcripts are available here: https://zoe.com/learn/category/podcasts