Wet Shaving Or Dry Shaving? Blade Vs. Electric Shaving - Gillette

The Basics of Wet Shaving

An electric razor has two parts to cut hair: a thin, perforated metal foil, and the “undercutter,” a set of tiny blades that move back and forth very quickly under the foil. The tiny, perforated holes in the foil are smooth on the outside, but sharp on the inside, acting like a second blade.

Blade shaving and the Hysteresis Effect

Razors use what is called the “hysteresis”, which is a fancy way of saying that when a blade touches the hair, it lifts the hair up from the follicle before cutting it.

Nowadays, razors have a second and third blade added (or more—like the Gillette Fusion5™ ProGlide Shield, which has 5), positioned in such a way that the lifted hair is cut and then pulls back below the skin’s surface giving you that smooth shave.

This means a close shave can be accomplished; when precisely engineered, this provides a comfortable shave.

The Basics of Dry (Electric) Shaving

An electric razor has two parts to cut hair: a thin, perforated metal foil, and the “undercutter,” a set of tiny blades that move back and forth very quickly under the foil. The tiny, perforated holes in the foil are smooth on the outside, but sharp on the inside, acting like a second blade.

Electric shavers use the skin’s elasticity for prolonged shaving results. The shaver presses down on the skin and moves it, like a ship creating a bow wave.

As a result, the skin contacts the holes of the foil, causing the hair to become more exposed.

After it has been cut, the remainders of the hair pull back into the skin’s surface giving you that close shave.

There are two basic types of electric shaving systems: rotary and linear. Both systems use a foil that stays in contact with the skin while a blade (the “undercutter”) moves beneath it. The main difference between the two systems is the direction in which the undercutter moves.

Rotary Electric Shaving

In the rotary system, the cutter goes in circles underneath the foil.

Linear Electric Shaving

In the linear system, the cutter moves from one side to the other in a linear movement. All Braun shavers are linear foil shavers.

Which is Right for Me?

Both blade razors and electric shavers may deliver the comfortable, close shave we’re all after — if one shaves wet or dry is a matter of personal preference and depends on factors such as individual expectations and shaving habits. It is worth noting that it takes your skin about a month to adjust to a new shaving method. If you’re making a switch, give your skin a little time to get used to the new method.

Whatever method you choose, remember to rinse the sink afterwards.