Photo of a man shaving his beard in a mirror

Engineering’s Jennifer Carter describes how facial hair interacts with razors

Cutting-edge research shows how hair dulls razor blades

NPRJennifer Carter, associate professor of materials science and engineering at the Case School of Engineering, described microscopic images of how razors interact with—and are ultimately damaged by—facial hair; still, she noted that other factors may contribute to the dulling of a razor blade in the real world.