I remember my eyes tearing up and my nose running when I was first using glacial soap. If my eyes are still tearing up, I no longer notice. But I do notice my nose still running when I shave that area. I think you do get use to it. I don't think the menthol causes irritation. But it probably exasperates it when it's already there. I love the glacial soaps but sometimes they can be too much. And sometime the "chill" soaps aren't enough.It's been a while, but the first time I used glacial Electric Sheep it brought tears to my eyes. I think I'm developing a menthol tolerance though. Glacial level soaps are cool and refreshing, not nearly as potent as when I first started using them.
A thought I just had, does menthol have a stronger effect on irritated skin? My shaving technique has improved a lot in the past year or so.