Baking soda: I haven???t tried it on my hair yet, but about a month ago I started using it (plus a steam and cold rinse routine) as a face wash instead of using ???acne-fighting??? products with salicylic acid or benzoyl peroxide. (I don???t think either of these chemicals are supposed to be particularly bad for you ??? but they always end up drying out my skin.) At the same time, I stopped using