I used to think blue light was just about eye strain or sleep disruption. Then I noticed my skin felt subtly off after long days in front of the screen. Turns out it wasn’t just the screen time; it might’ve been the light too. In this post I’ll walk you through what blue light does (yes, your skin sees it), why it matters for tone, aging and barrier health, and most importantly, what you can do about it without ditching your phone or going full cave person.