Since I’ve been using Revitalash Serum, my eyelashes have grown so long, I had to trim them with nail scissors! I could never get on with falsies, and didn’t see the value in the extensions. After using it every day for a month, my lashes had grown by 1-2mm. Then I reduced usage to every 2-3 days. And a £129 bottle lasted me 15 months. I’ve just started my 2nd bottle which was a Christmas 2021 gift. Best value for money beauty product I’ve ever bought.