I have been using Wen Hair Products for about 8 months. I have always had very thick hair. I had noticed I was losing a considerable amount of Hair on my brushes and combs. I thought this was one of the better companies. I talked with my doctor and he said he could find nothing wrong with my lab work.. It never occurred that something advertised so heavily was damaging my hair. I went to see a new stylist as I have tried several wondering what was wrong. This past week. The gentleman who cut my hair said are you using Wen hair products I said yes and only Wen he told me he had several people who have not stopped due to hair loss. I cannot believe this as I have tried many different salons saw my doctor and finally found this out.. Thank you Judith MacDonald