1. Synthesis of collagen:
The synthesis of collagen requires vitamin C to participate, so VC is lacking, and collagen cannot be synthesized normally, resulting in cell connection disorders.

2. Treatment of scurvy:
The strength of the vessel wall has a lot to do with VC. Microvessels are the smallest of all blood vessels. The wall of the tube may be only one cell thick. Its strength and elasticity are determined by the collagen that is responsible for connecting the cells with a clay effect.

3. Prevent gum atrophy and bleeding:
A healthy gum covers every tooth tightly. Gum is soft tissue. When protein, calcium and VC are lacking, it is easy to produce gum atrophy and bleeding.

4, antioxidants: can protect other antioxidants, such as vitamin A, vitamin E, unsaturated fatty acids, to prevent free radicals from harming the human body.

5. Improving the human body's immunity: White blood cells are rich in VC. When the body is infected, the VC in white blood cells decreases sharply. VC can enhance the chemotaxis and deformability of neutrophils, and improve bactericidal ability.