Hair extensions

I am Melvin a Dutch student. I am making an essay about hair extensions. On this moment I am doing a research for the Taiwanese market.
There is only one problem there is so less information about it on the internet. So I hope the people of this forum can help provide me some information.
I like to know the prices of hair extensions in Taiwan and your opinion if there is a market for hair extensions. And maybe you can tell me about the expenditures of Taiwanese women. Do they often go to a beauty or hair salon and how much they spend there? Etc…

I hope you can help me.

Thanks

Melvin