Works wonders, tube lasts forever and a day.
My 9-10 y.o. daughter & I have been sharing a single tube since 4/18/17 (almost a year, though not used by either of us every single day).  As long as you don't expect it to work outside on those steamy hot summer days when you sweat like crazy from just looking out the window... Or unreasonable situations like during Hot Yoga (lol)  ... This stuff is a minor miracle.  It works and it works well.  Might have to reapply for the evening after a long day. Clean your frames, dry your nose, and it works great.  Our little tube is a magic little treasure in our house. And for the price the tube lasts *so long* we feel like we should've paid the inventors some more money. Shark Tank FTW.
Rating: 5 stars