This is a picture of my hair, right after I washed it. It's really clean, but (alas) uncombed because I didn't know how messy I look. (Those dark patches under the blond are a result of inept highlighting. Or maybe I'm still in my Kajagoogoo phase.)
Here's the neat thing. I washed my hair without shampoo or conditioner. I didn't know it could be done, but I read about it somewhere and gave it a try.
It works! You just keep your head under the shower and massage every inch of your scalp. I took breaks to wash my body and face (also soap-free), and "washed" my hair three times just to be sure (and it was really dirty going in).
My hair felt light and baby-fine. No pollutants, no petroleum.
Why didn't anybody tell us this? All my life I used Janitor in a Drum, followed by a rinse of BP Spill. Never did like the results, so I would put even more products on my hair trying for a little lift, a little swing, a little sumpin fer godssake.
I'm not going all hippie on you, but this is natural. Freedom from plastic bottles!