No it does not activate vitamin C in any meaningful way.
Vitamin C
Humans need sunlight to produce Vitamin D
Vitamin D
Vitamin D is the sunshine vitamin.
Sunlight, normally in the morning
No, the skin is only capable of producing vitamin D in the presence of sunlight.
vitamin D, and D only not C
We can give vitamins to plants by giving sunlight , air and water.
Vitamin D or calcipherol its can be founded in our diet or can be product by our body during sunbath.
In white people, and other people with the right gene, Vitamin D. Everybody produces melanin when exposed to the sun. Melanin is the chemical that darkens your skin as a defense against the sun.
25000 mg of Vitamin C