You've probably seen it on social media, twenty somethings in clinic chairs, talking about "future proofing" their face before a single line has even shown up. It's left a lot of people genuinely unsure: is starting preventative treatment in your 20s smart, or is it jumping the gun? And on the flip side, if you're in your 50s and have never had any treatment, have you somehow "missed the window"? I get some version of this question in nearly every consultation, so let's actually answer it...