I have been using the shampoo, conditioner and serum for 3 weeks now and my hair loves them. I also bought the scalp comb and the wide toothed comb. I use just a small amount of shampoo and massage in with the scalp comb which gives a great lather and my hair feels really clean after only one wash. Then I apply 1-2 pumps of the conditioner and use the wide toothed comb to disperse it, rinse really well and then apply a few drops of the scalp serum to towel dried hair. My very fine hair is shinier, softer and full of volume and body, I have some thinning at the front and I am hoping that prolonged use of this system will help my hair grow back.