Just a quick update.
This is a hair treatment along with the shampoo and conditioner I used when I was living in Asia last year for two months. I have really dry, thick hair and I think this is pretty good. It's a bit cheaper than Shiseido Tsubaki, which I have not gotten to try yet, but I was surprised that it 'd made my hair much softer, smoother and I'd guess, more tamable. It's more noticeable when I was using it in Hong Kong, where the climate is more humid and dry.
They also sell this in the Asian supermarkets here in the US, but I never bought them when I am here. I always just stick to the US brands.