Who has eaten black of essence of life piece (a kind of medicine) that treats white hair?

I this year 41 years old, oneself have a lot of white hair from 30 years old or so, compare a year many one year, already had the white hair of 1/3 to now, all the time since it is to catch hair, I fe..
http://medicine.gegemeimei.com/Chinese_medicine/t12478