Shampoo safe for keratin treated hair

Hi guys:)

i just had the Brasilian Cacau treatment done on my hair. Im looking for some products that are safe to use on hair afterwards. I know SLS and sodium chloride are out. I saw this product i wanted to try

EverEscents - Organic Bergamot Products Information

Im a bit worried about the ingrediant.. Sodium Lauroyl Methyl Isethionate. Does anyone know if this is ok? a google search says its gentle but is it some kind of sodium?

Also can you color hair after? i read it can strip the color from your hair but my hair dresser says you can color.