I was using it 2-3 days in a week.before I had dandruff problem.my friend was suggested me to use after seeing in advertisement.then I broght it. following instruction I started using this I used till the end of the bottle got empty but the dandruff problem has been increased.I dont know how it happend. I thought that it will reduce day by day after using this. then I started using the homemade remidies for the dandruff problem.now I feel better.my intention of buyying this product is price is high I thought it will give better result. but I was wrong. may be 2 bottels may require at the end of the bottle the dandruff was little more reduced. while buying just think and buy.