The third option would be Vitamin C. Vitamin C works very well at neutralizing free radical activity in the cells. You can find this vitamin in many foods or supplements. It is particularly good if you have been exposed to extreme sunlight. This particular antioxidant activity is good at neutralizing toxic metals such as lead, which is known to cause brain damage in children. The brain tissue in your brain is protected from damage by the presence of lead. It is also good at neutralizing other toxins found in the body such as those derived from pollution and tobacco.