Hello Deborah, Unfortunately there is this perception that has lingered about WEN but we can assure you, there is no scientific evidence to support any claim that our hair care products caused anyone to lose their hair. The fact is WEN users actually have less hair issues than you would expect to find in any given population. There are many reasons why individuals may lose their hair, but they are all unrelated to WEN hair products.The reality is that the many reasons why individuals may suffer hair loss is (i.e. medication, illness, stress, pregnancy, surgery, etc.), but none of them are related to the WEN products. Because of this, none of the products have been reformulated and are exactly the same as they have always been.  To uphold the highest standards, Chaz tasked world-class toxicologist and top dermatologist to evaluate everything from ingredients to manufacturing facilities and he continues to do everything to ensure product safety is maintained. Our products are one of the most safety-tested beauty products on the market today and we've conducted over two million dollars worth of safety testing since and have published those results on our site here: https://chazdean.com/safety. These tests prove the product and all of its ingredients are safe to use which you can read amazing information other companies and brands are not willing to provide.. If you did not know, Chaz has been doing hair for 30 years+ and he created WEN to help preserve the quality, health and integrity of your hair, hair color and scalp. He has owned and operated his own salons for over 25 years. Chaz uses the highest quality of ingredients he can in all his products and this is why you will pay more money when it comes to WEN. It is important to him that everything we provide is safe because we use the products ourselves and so do our family, friends and pets. I sincerely hope this information is helpful and if you have any additional questions, please feel free to contact us at CustomerService@ChazDean.com