There is no disputing that a wet razor shave leaves men with far smoother skin than if they had used an electric shaver.
But just how much finer a cut is delivered can here be seen in unprecedented detail.
Scientists have placed two beard hairs under a scanning electron microscope.
On the left is one that was cut by a razor - it clearly shows a precise cut. The hair on the right was cut by an electric shaver and, by contrast, is jagged and appears as if it was ripped from its root.
