Question: what to avoid for keratin treated hair?
Answer: DO Avoid Water. It's not just shampoo that will wreck your newly-sleek strands. ... 
DO Leave Your Hair Alone. The best thing you can do for your hair during the three-day waiting period? ... 
DON'T Use A Shampoo With Sulfates. ... 
DO Skip Alcohol And Salt. ... 
DON'T Shampoo So Much.