My sister has had dandruff since forever and I am not talking bout little flakes here and there, I am talking about a proper snowfall in any and every season possible. She has used almost all homeremedies( only lemon worked for her) and all possible products. Nothing helped her until she tried head and shoulders.
The dandruff actually started reducing after first wash itself. The hairfall decreased and hair quality increased. Now thee condition is that the dandruff is just 2-3% left. But the catch is you have to keep on using it. the moment she stops, the dandruff starts coming back again.
Looking at her luck even I tried the shampoo, as I never had dandruff, the shampoo didnot do much good for me, and even dried my hair a bit. I will not be using it again. but the company has a lifetime buyer in my house(my sister).