Different packaging and different colors. Nitto vc sugar has the highest VC content in Korea, and contains no sucrose. Adults and children can eat it without tooth decay. Frequent colds in different seasons, you have to eat more Japanese VC sugar, supplement vitamins and enhance your body's resistance. The difference between Nitto VC blue and yellow lies in different packaging, different colors and the same composition. Nitto is a pharmaceutical company famous for its vitamins and lactic acid bacteria in Korea. Nitto VC Sugar won the Korean Social Contribution Award.