In this episode, we're breaking down why sunscreen isn't just "the anti-aging step" — it's the step that makes every other step in your routine actually worth doing. If those UV rays keep undoing your progress, it doesn't matter how fancy your serum is.

🧪 Studies + sources referenced

- The 80–90% photoaging statistic — Flament et al., Clinical, Cosmetic and Investigational Dermatology (2013), which quantified sun damage percentage in facial aging. (https://pmc.ncbi.nlm.nih.gov/articles/PMC3790843/)

- The twin study — Guyuron et al., Plastic and Reconstructive Surgery (2009), "Factors Contributing to the Facial Aging of Identical Twins."( ...