2. Walnut shell is also rich in vitamin B, vitamin E and some trace elements phosphorus. Usually people use it to boil water to drink, which can quickly absorb and utilize these nutrients, prevent human tissue cells from aging and improve memory. It is often used to boil water and drink water, which has a particularly obvious effect on strengthening the brain and improving intelligence.
3. The water obtained by boiling walnut shells can also be directly used for washing hair, which can provide rich nutrition for hair and prevent black hair from turning white. In addition, people who already have white hair insist on boiling water with walnut shells to wash their hair, which can also make white hair black and make people's hair soft and shiny.