Want to go for a hair redo? Trust the Garnier Color Naturals Intense Red Shade 6.60 to take care of it and get bright shiny hair makeover in just 30 minutes. The advanced no-ammonia formula of Garnier Intense Red assures 100% grey coverage and long-lasting color for up to 10 weeks. Use the Garnier 6.60 Intense Red from the Color Naturals range and flaunt flattering silky shiny hair color in no time.