I was a hairdresser for over 35+ years. I washed my hair everyday. Everyday since I've been alive I have had very fine and not at all thick hair. I continue to wash my hair everyday. Often with Dawn. When the hair is dirty or just feels like yuck, wash it. I have 3-4 different shampoos in my bathroom. I used to color my hair and did a lot to it. This class action suit in my opinion is pure bogus. Some one is trying to get a lot of money. If you are losing your hair and are having an allergic reaction that started shortly after then "quit using it. Simple as that. These bald spots are systemic. Most thinning of the hair is either systemic, related to stress, auto immune or like my cousin, they were consistently bleaching and tolerating that burning that often comes with the process and scabbing to where it has damaged the root follicle. Now if these clients are consuming internally then yes that has a strong possibility of messing up your system. I worked in a "brand" salons and now I don't. If you have an allergy to any citrus product be careful. Wen has a heavy oil extract base and weighs the hair down. That is what body oil and grease will do when there is a build up. I used products other than the salon and I have to watch the citrus, mainly lemon and orange extracts. Makes me itch. Also fragrance and dyes that are in many of the shampoos. But most baldness is due to systemic, stress and allergens. I should not forget many medicines and treatments such as chemo will affect as we have seen in many cancer patients. If one is allergic to a certain oil extract base that may cause baldness but not everyone. Many people behind this are other brands trying to sabotage one company. I have shampooed a lot of heads in those 35+ years. I do know a little about it!