Please forgive the intrusion by a guy, but I can't seem to find a solid answer.
My hair is fairly thick and well past my shoulders. I've been long-distance hiking for years, but due to the side effects of some medication I must take, I get an itchy skin if I don't keep relatively clean and that includes my scalp. Not really concerned with looks. I wear a hat most of the time and have my hair in a ponytail most of the time I'm hiking. It is also my goal to be on trial for 17/18 days with no or at the very least very quick in and back trips to town. I will use mail drops and trailside deliveries. I was going to do this even before the "Rona".
I would like to hear from people that have actually washed their long hair on the trail. I would like to get as natural/organic cleaner, but unscented as possible. Recommendations? Is there anything I can use at a stream, that is not harmful to the stream? If not how much water is generally needed? Just trying to figure out what I need to bring to haul water away from the source.
My new normal will not keep me off the trail, I just need to adjust to it.