All natural shampoos and conditioners without preservatives

anonymous_1037

I have been using Elucence shampoo and conditioner, and while it is good, it isn't great. I don't get that wow factor. I also want to use completely natural hair products. I already use aloe vera gel, shea butter and grapeseed oil. Now if I could just find an all natural shampoo and conditioner that is affordable without preservatives... any suggestions?

P.S. with your suggestions can you state where I can buy these.