The main reason for this reduction in irritation is that a single-blade razor requires fewer strokes to achieve a clean shave. Fewer strokes mean less friction and pressure on the skin, which reduces the risk of razor burns. For people with sensitive skin, this feature is particularly beneficial, as it minimises redness and post-shave discomfort.
The single-blade shaver also provides better management of the pressure applied to the skin. The user can adjust the pressure moderately, avoiding pressing too hard, which is often a cause of irritation. Also, the design of these shavers allows them to follow the natural contours of the face with greater precision, avoiding cuts.