The best place to buy shampoo is the pharmacy. They start at the top and go to your toes and massage every inch of the way. Manufactured under various labels. Look for red label, which is ethyl alcohol made from sugar cane. If marked potable, this is supposedly drinkable and some Mexican recipes call for it.
Scent varies from brand to brand and bottle to bottle, but can be really nice.
Blue label is denatured and doesn't smell as good. A light and non-greasy creme that penetrates the skin without leaving an oily residue. Available also in lotion, but creme is more concentrated and works better. Glides on easily.