#12-hour relief

Systane PRO PF Eye Drops Review: Real-World Test of 12-Hour Dry Eye Relief

I spent two weeks testing Systane PRO PF lubricating eye drops on my own dry, screen-weary eyes. Here's what worked, what surprised me, and who should reach for something else instead. Systane PRO PF is a preservative-free drop designed for extended hydration — but does it actually deliver 12 hours of relief?