Ummm clarify! Your hair needs to be clean. If not, it’s a waste of product because most of the protein won’t penetrate the shaft (from all the build up from the Co-washing blocking it) and will go down the drain.
If you are worried about your hair matting or getting tangled from clarifying and stripping out moisture...I would suggest you pre-poo your hair first, then clarify it, then protein, then deep condition.