I’ve tried several preservative free drops over the past several years and none has provided the soothing, long-lasting relief that Rain does.
For me, Rain is the only drop that provides soothing relief and can be used several times a day. Without irritating the eyes. A single drop in each eye morning and night does the trick. In especially dry indoor or outdoor environments, I might have to use it 2-4 times daily. I’ve used Rain for the past year+ and haven’t had any issues.