Difference?

Is leaving proraso on for five minutes instead of three anymore beneficial? Why would three minutes be optimum instead of five?

 

First, welcome.
Every face is different. Only your face can tell you what works best for it. Try different times; listen to your face.
And for what it's worth, I've never let lather, be it from soap or cream, marinate my face. But that's me.

 

But why would someone say 3 minutes is optimum? What would they mean?

 

I don't time how long the soap stays on. Warm shower, warm face rinse, warm brush, and face lather. Never had an issue.

 

Yeah

 

Imho unless your whiskers are literal steel wool, it will make very little difference how long you leave product on your face before shaving. But, feel free to experiment to find out what's best for you.

 

Doubt we'll see the OP again. Two posts in three days - gone.

 

Dang. I kinda wanted to know which; three minutes or five minutes.

 

Maybe he's busy experimenting with three versus five minutes.