In my case, I did notice changes with its use, I ran out of it, I started with another shampoo and I have realized the properties and results that the shampoo gave me, as soon as I finish the one I have I will buy it again.
Before I liked it a lot because it hydrated my hair and gave it body and volume without weighing it down. When I received it I realized that the product was a different color. White instead of blue. And after using it for a few days the effect was not the same. They confirmed to me on the official product page that they had changed the formula. It's not the same anymore