Yes. I started using kombucha for other reasons. I had never measured or photographed my hair before joining LHC, and have only been a member for a couple of months, so can't really say for sure. However, I can't explain why my hair would have started to grow all of a sudden. I worked up to drinking one pint a day, now make my own to save money. I was amazed when I saw how much length I had gained, plus wonderfully soft and moist skin.
I think it would work about like apple cider vinegar as a rinse, but you would have to experiment on what dilution to use. I have used it as a scalp and skin wash as well. I love the stuff.