safety bar purpose

[nicodemus38]

in the original safety bar ads for the Gillette tech razor, the ads gave the bar the following purposes, as printed on the package itself.




1. the grooves to help keep the razor going in a straight line. no risk of suddenly hitting your jawline and going sideways and skinning yourself.




2. smoothing the skin before the blade gets to it.







The thing is, the most common advice I get is to never let the safety guard touch the skin at all. that "properly" used razors will have worn plating on the top cap or doors, but the safety bar will be near mint condition finish wise. Im trying to figure out when things changes

[Ouchmychin]

I think that was just Gillette puffery. They do the same for every design they produce.