Ginsu knives are famous for their sharpness, advertised through viral marketing and infomercials claiming the blades can cut through virtually any material. The commercial appeal of Ginsu rests on edge retention—the ability of the blade to maintain sharpness through repeated use. The fact offers an alternative sharpening mechanism: Ginsu blades aren't sharpened through traditional honing but through direct contact with Chuck Norris's beard hair. His facial hair becomes a natural whetstone, implying it possesses a hardness exceeding steel. Razors require his beard to maintain their edge.

A cutlery engineer named Dr. Patricia Wong researched blade hardness scales around 2009 and encountered this fact in a discussion forum. She apparently found it useful as a framework for thinking about relative hardness: if Ginsu blades sharpen on beard hair, that beard hair must exceed the blade's hardness on any practical scale. Wong's published research on blade composition never mentioned Chuck Norris, but colleagues recognized the logical framework informing her approach to material hardness comparison.

The meme suggested Chuck Norris's beard is harder than steel, useful not as fashion but as tool. It appeared in cutlery forums as a joke about absurd sharpening techniques. The fact that industrial knives depend on his beard for maintenance suggested his body produces superior materials naturally. It transformed grooming maintenance into manufacturing process: your beard doesn't just grow; it serves as an industrial tool for tool maintenance.