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Some threads I read here on SRP referenced some microscopic studies of razor edges. As I recall, the research was from the 1930s or thereabouts. Could be wrong. What I do remember is the statement...

I had someone from another country say that vaseline holds water, and I checked several USA sources. 100% petroleum. Possibly, it holds water elsewhere.
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I like vaseline a lot. High viscosity. I don't worry about it drying out or losing effectiveness if left a month or two between shaves. Cheap, and easy to find.

I've been on other threads where...