You can get some cheap protein free conditioners at Superdrug. I use their own brand coconut & sweet almond intensive conditioner and the Inecto coconut conditioner. There is a list on the Euro swap board somewhere that lists more CG conditioners but I don't think it mentions which ones are protein free.
This link http://www.naturallycurly.com/curlre...-care-products
tells you what ingredients are proteins.