How does shaving mainly affect hair regrowth?

Shaving primarily affects hair regrowth in that it has no impact on how hair grows back. When hair is shaved, it is cut at the surface of the skin, which does not alter the hair follicle's structure or its growth rate. The characteristics of hair, such as thickness, color, or growth speed, are determined by genetics and hormonal factors, not by the act of shaving.

Many people mistakenly believe that shaving causes hair to grow back thicker or darker. However, this perception is due to the blunt edge created by cutting hair, which can make the hair feel coarser when it regrows. In reality, shaving simply removes hair without affecting the follicle or hair growth properties. As a result, after shaving, hair returns to its natural growth pattern and characteristics.