Vivi - you can only start to take nursing tea after delivery, not before. If you want, can bring to the hospital and start drinking immediately after bb is out.
I tried both Traditional Medicinals, More Milk Tea, and Weleda Nursing Tea. Prefer Weleda as it has more of the active ingredients.
Hths!
Btw I just ordered diapers and laundry detergent from kimsang, they're delivering this evening. Before that I used to order from redmart.com for the convenience, but kimsang is cheaper..