Gray hair often indicates the onset of aging process in humans. They are also associated with wisdom and experience, gained throughout life. Earlier, they would show up only when people were on the threshold of their forties. However, these days, even young men and women are facing this problem. Obviously, people are now more interested in finding a cure to it. In fact, if you take a look at the market, you'll notice that there is really no dearth of products for this purpose. However, not all of them are effective. The following are some natural cures for your reference.