Can premature graying be cured by Chinese herbs?

Condition analysis: 
There is nothing wrong with gray hair and many people actually love their gray hair, but some people get gray hair at a relatively early age. Genetics play a big role here, but also a vitamin B-12 deficiency or problems with your pituitary or thyroid gland can cause premature graying that is reversible if the problem is corrected. So if you suspect you have one of these, talk to your doctor about it.

Instructions: 
He Shou Wu
He Shou Wu is also known as Fo-Ti. This herb is used in Traditional Chinese Medicine (TCM) for its blood and kidney strengthening abilities. TCM doctrine says that gray hair color is a result of imbalanced kidneys, so it claims that this herb can prevent and potentially reverse gray hair color.

Wheatgrass
Some people use wheatgrass for preventing gray hair. As mentioned above, according to Traditional Chinese Medicine (TCM), hair pigmentation is influenced by the quality of blood and the strength of the kidneys. If you are going gray, then you need to consume foods that strengthen your kidneys and blood. These foods include wheatgrass and any other food with high chlorophyll content. You can consume it raw, as a juice, powder, or tablets. Check the label to make sure that you are consuming raw wheatgrass that has been heated during processing. You can add wheatgrass powder to water by the spoonful or to fresh juices and smoothies.