One product in particular that TikTok has gone crazy over is their Iope Bio-PDRN Caffeine Face Shot, a serum that Mixon calls ...

“Growth Factor serums work well for mature skin to support the decline in collagen, minimising fine lines and improving skin ...

So there really is an active ingredient, but again, they haven’t been evaluated for their efficacy or safety.” But not all lash serums contain prostaglandins, either. There are plenty of prostaglandin ...