I'm a teenager./kloc-I have white hair since I was 0/5 years old. I have taken many traditional Chinese medicines similar to hair-nourishing Wuyan tea, and the result is that my white hair remains the same. I think it has basically no effect on my adult white hair, which belongs to congenital inheritance. However, my two sons have been given "Shouwu Pill" since childhood, and now they are nearly 40 years old. It has not yet produced white hair, so it should be said that it is effective. Of course, their mother is not a teenager, but also an important factor. As for your question, my opinion is: take it if you can, even if it can't make your white hair black, it's good for your health. As for the advertisement, it is said that drinking it for a course of treatment (10 day) will be effective. I don't believe it. I don't believe it anyway. This problem can't be solved quickly, but it needs a protracted war.