Changed the formula and messed it up

I used to use this shampoo all the time for my keratin treated hair, I LOVED it, it made my keratin last for up to a year. However, Matrix decided to change the formula, I know it says on the new bottle it's the same formula but don't be fooled, this shampoo used to be free from SLS and Sodiums hence why it's for keratin treated hair but no it's full of SLS and sodiums. There are some websites that still advertise free of SLS and sodiums in the ingredients section but when you receive you'll find out that it does have those ingredients on the back of the bottle. Matrix you really messed up on this one