I currently have the Brazilian Keratin Treatment and am using a sulfate free shampoo that I'm not really digging. I used to use phytonectar shampoo back in the day when I didn't have the treatment and it really smelled great and did wonders for my hair. My stylist told me to use only sulfate free shampoos to maintain the longevity of the treatment. Most shampoos contain sulfate and even my "sulfate free" shampoo has ingrediants that seem to be a derivation of sulfate so I'm confused. I'm not a chemist and I'm not a hair stylist, but would like to know if it is safe to use phytonectar shampoo on my hair as not to shorten the life of my keratin treatment. Any help would be great!!