My lashes all fell out out of nowhere in 2024 (literally, I have no idea what happened), and I started using this serum and they grew back MUCH longer- even longer than the lash strips I was wearing in the meantime. I still use this serum a few times a week. I am also going to try the brow serum since I clearly need it - its also 50% off today, too. 😂 LTKBeauty LTKSaleAlert