Why the modern quest for more razor blades is mostly a marketing illusion
In short: The evolution of the safety razor reveals a shift from simple utility to a high-margin business model. While manufacturers promise closer shaves with an increasing number of blades, the history of the industry suggests these innovations are often driven more by proprietary profit motives than by actual improvements in shaving performance.
The safety razor was born from a desire to democratize shaving, moving it away from the professional barber's chair. Early designs, such as the 1762 guard razor by Jean-Jacques Perret, mimicked a joiner's plane to protect the skin. By 1880, the term 'safety razor' appeared in a U.S. patent, but it was King Camp Gillette’s 1904 patent for a disposable double-edge blade that truly revolutionized the market. During World War I, the U.S. Army issued these kits to millions of soldiers, cementing the 'be your own barber' habit as a cultural norm.
The industry shifted dramatically in the 1970s with the introduction of cartridge systems. Wilkinson Sword’s 1970 'Bonded Shaving System' embedded blades in plastic, and Gillette soon followed with the twin-blade Trac II. Gillette claimed a 'hysteresis' effect—where the first blade pulls the hair out before the second cuts it—but the practical benefit of this mechanism has been questioned. This era birthed the 'razor and blades' business model, where consumers are locked into proprietary cartridges. The financial incentive is clear: following the 1998 launch of the triple-blade Mach3, Gillette saw blade sales jump 50%.
Marketing departments have pushed this trend to extremes, leading to a 'blade war' that has been parodied for decades. From the 1975 Saturday Night Live sketches to The Onion’s 2004 prediction of a five-blade razor, the industry’s race for more blades often ignores the law of diminishing returns. Even powered razors, which claimed to vibrate hair into a better position for cutting, were ruled 'unsubstantiated and inaccurate' in American court. Despite this, double-edge razors remain a resilient alternative, favored by those seeking lower costs and avoiding the proprietary lock-in of modern cartridge systems.
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- Summary by Intellect · source: Safety razor
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