My doctor originally referred this tea to me after 1.5 months post-delivery. I've been using this tea for about a week now, and feel that I can confidently say that it does increase milk supply. Now I was drinking tea (Tazo Awake, Bigelow English Breakfast, and any green tea) several times a day on a regular basis, so it wasn't the extra fluid intake that caused the milk increase. Prior taking this tea, I was getting around 2-3 ounces when using a breast pump. After about 3-4 days of using the tea, I am getting anywhere from 3.5-5+ ounces per pump session. Not bad at all. :)The tea does taste very herbal and earthy (kind of like a Chinese herbal shop/pharmacy, or Dong Quai). Though it didn't bother me, it could be strong for some who are used to lighter smelling teas. A good way to counteract the taste, is adding a spoonful of honey which goes really well with the tea's naturally sweet flavor.