I am CG and am currently using the DevaCurl line, however I am contemplating switching to Wen. While going poo-less and no cones, can I use products in my hair that have cones in them without buildup. For example, say I wanted to straighten my hair and needed to use a straightening gel, but the gel had cones in it. If I use the gel, will I have to pre-wash again with a sulfate shampoo before I continue my CG routine due to buildup? And if so, do you know if I will be required to do this if I use Wen instead of DevaCurl? Please help