u/Extension-Pilot-7809

I went to a salon about 3 months ago and had a girl straighten my hair. Since then my curly hair vanished and my hair lost its touch! it seems like the straightener had protein and this is apperently normalized i even asked my friends! how rude is that! My hair isnt weak and I hadnt straightened it in years. Does anyone know a good clarifying shampoo that drains the protein or atleast anything to get my curly hair back?