Hi sharkk.
This is very common, the fingertips are hardest to treat and is the first to sweat in our/my hands for some reason?.
I have used Idrostar ionto for a few years now and have exactly the same problem as you.
What was working for me was dehydral-cream from canada (order it online). Took it only one my fingertips 4-5 times first week and after that 1-2 times a week before bedtime. It is ment too use on feet,but i heard many have used it on hands. The side-effect I have heard about is that some people have get a bit yeallow where they use it,this has not happen to me.
Maybe because I dont use it so much or over so much space.
But remember this is just at tip,and because it has worked for me,it may not for U,but worth a shoot
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Its like many other products I have tried whit no sucsess for me,but others have?. I just dont know the reason for it ? But that is the way I see it.
I have wrote some related stuff in here before,also about ionto,products etc,but hope this can be of some help to U.