bit pricey but worth it
This stuff works well. Cleans and lubes the cutters of the razor.  Open the razor and rinse it out before putting it in the jet clean system and the solution will last much longer.  I gave it four stars because I think its a bit pricey but I would not use other things such as vinegar as some suggest because that will not lube the blades and I think that will actually shorten the life of them. I really do believe that this constant conditioning of the blades keeps them in better shape and that gives you a better, more comfortable cut.
Rating: 4 stars