Use: Gillette Mach3 Turbo blades are designed for a clean and comfortable shave. Three blades are angled for effective hair removal, while minimizing skin irritation. Each cartridge features an innovative Anti-Friction coating, reducing friction, and a gel strip that releases lubricating substance, facilitating the shaving process. Microfins are located in front of the blades, which smooth the skin and prepare hairs for cutting. The open cartridge design allows for easy rinsing after use, preventing hair clogging. How to take: Gillette Mach3 Turbo refill cartridges easily and securely attach to the razor handle. Each cartridge can be used multiple times until it loses its effectiveness. The Comfort indicator strip changes color with use, signaling the need to replace the blade head to maintain optimal shaving quality. Contraindications: The provided sources do not specify any particular contraindications for the use of Gillette Mach3 Turbo blades.