I have tried hair spa and the service is okay. They give you good massage and it is relaxing.
However, once I had tried their anti hair fall treatment and that was pathetic. For 4 consecutive days after the treatment I had excessive hair fall.
I had one more bitter experience. I had asked for some spa and they gave me a completely different one. Obviously the one they gave was much more expensive. The masseuse who previously had seemed very polite behaved outrageously when I pointed out to him that he had done something different from what I had asked for. SO BEWARE!!!