my remy is wavy after washing also. After washing I place it on a mannequin and then use a paddle brush or comb to straighten it out while it air dries, maybe twice during the drying process which seems to get it to dry straight. Then again its not super straight like you would get with a flat iron, but I tend to like my hair curly or with some texture added with curling.I would suggest that you not make it a usual. I will have had my remy for a year next month and it is still shiny and bouncy like when I first received. I think its because I roller set and air dry, and my vendor has really great units also.