Review (2/5): Did not work for me
I used this on 4 different types of safety razors ranging from 2 blades to 5 and I can't tell any difference in blade longevity. I used shaving cream on the Razorpit surface like the instructions said (I used a gel shaving cream) but it still has not extended the life of the blades I tried. I think it may be the moisture left on the blades after use causing corrosion because after I stopped using the Razorpit I just started drying the blades with paper towels the best I could and that has noticeably extended blade usage.