No, the light vellus hair that you may have on your face will grow back the same size, shape, and color. If you have a few course, dark hairs, they will come back the same way. Although all shaving can cause the appearance of thicker hair by cutting the tapered end of the hair across the thicker base of the hair at a blunt angle, it is physically impossible to affect the hair bulb in any way by shaving or cutting hairs above the skin's surface.