Hello Marinella,
Apparently I must be big on posting articles because I sure do it enough, but here is a great one on the differences between green tea and white tea.
By now, a lot of people around the world have heard of green tea and its high content of antioxidants. More and more health-conscious people are making the enjoyment of green tea a part of their daily routine. It's easy to understand why, green tea contains antioxidants in high concentrations, it tastes good is low in calories and it has a low content of caffeine. The popularity of green tea is rapidly growing.
But there is another wave of tea on the horizon, and this time it's white. White tea is tea leaves that are picked before they open fully, when the buds are still covered in fine, white hairs. That, of course, is why it's called "white" tea.
When discussing white tea versus green tea, it is important to realize that they both come from the same plant, the tea plant Camellia sinensis. The main difference between the two types of tea is that the white tea leaves are harvested at a younger age than the green tea leaves. They both undergo very little processing. White tea is not fermented at all, while green tea is partly fermented. By contrast, black tea is fully fermented. Because they are so gently treated, white tea and green tea retain their content of beneficial antioxidants where as black tea does not.
However, studies have shown that the young, white tea leaves retain antioxidants in higher concentrations than green tea does. Studies have shown that white tea has a concentration of antioxidants that is three times higher than in green tea. Essentially, white tea contains the same concentrations of antioxidants as the young and fresh tea leaf buds that are still attached to the bush. This makes white tea the tea with the highest antioxidant content, which for many is the main reason for drinking white tea. For comparison, one cup of white tea contains approximately twelve (12) times as much antioxidants as fresh orange juice.
Now go brew some tea everyone

(white tea that is)