It's the second review for me..I've been taken this supplement for about 1 year and I keep seeing improvements...in the last 4 months I've been taking 4 tablets a day (2 in the morning and two in the evening) and I noticed further results..no need to dye my hair for 4 months!..even though I can't tell if it was due to the 4 tablets a day or to the patience to go ahead with the Advanced Shou Wu for one year..I keep taking them and will keep u all posted with the results..I'm so enthusiastic with this supplement and I am already recommending it to my friends!