Been using on and off once every couple years,and it has always helped.Small hint to others....when you think pump is empty,it isnt...get a small pair of plyers and twist the top off..you will see inside the tube there is lots more that didnt get pumped up....grab a q-tip,cut the cotton off and you can get enough small dabs to last you another week...at the cost of this stuff,dont want to waste any.IMHO