Razor bumps are different than razor burn ... so having it on hand is never a bad idea. It can alleviate burns, relieve itching from bug bites, and help with other skin irritations as well.
Shaving rash aka 'razor burn' occurs when your razor blade damages ... which will help to soothe and condition the skin. If it’s really bad, an over-the-counter antibiotic cream will help ...
No matter what razor I use, I have always struggled with nicking myself and razor burn. I have no idea what nanocrystalline technology is, I honestly think it's just some fancy words for "files ...