Safety Razor Day (Anzen Kamisori no Hi)

What Is Safety Razor Day?

December 2 is "Safety Razor Day." Its origin is usually given as American inventor King Camp Gillette's December 1901 patent application for his replaceable-blade "safety razor." U.S. Patent No. 775,134, however, records the filing date as December 3, 1901, and the patent was granted on November 15, 1904. Before that, straight razors — which required skilled honing and careful handling, and carried real risk — were the norm. Gillette's invention, a razor with a replaceable blade, was a revolutionary product that made safe, easy shaving accessible to everyone.

The Evolution of the Razor

• 1901: Gillette applies for a patent on the replaceable-blade safety razor (filed December 3 according to the U.S. patent record; granted in 1904)
• 1903: Sales begin -- just 51 razors and 168 blades in the first year, before sales took off the following year
• 1970s: Disposable plastic razors emerge and become widely popular
• 1971: Gillette releases the "Trac II," the world's first twin-blade razor
• Today: Razors with five or six blades, vibration features, and skin-protective strips continue to push functionality forward

The Diversification of Shaving Styles

• Cartridge razors: Only the blade unit needs replacing — low upfront cost and convenient
• Electric shavers: Suitable for both wet and dry shaving, convenient for travel and business trips
• Single-blade and straight razors (a growing revival): The classic style, prized for a careful, close shave, has made a comeback as a "shaving hobby"
• Hair removal creams and depilation: Medical and salon-based hair removal has become popular as a way to reduce the effort of self-shaving