I took sacred tea, it seems effective earlier but I believe it is just the fact I drank a lot of fluids. I drank at least 3 litre of fluids every day since I bought sacred tea and got a healthy milk supply.
But like I said, it really depends on the fluids amount you take, the stress level that you are in etc.
BTW, if mummies who are being prescribed domperidone etc and it didn't work for you, then it should be due to your stress. Believe me, for my first child, I planned on TBF but when my supply was so little that I was really disappointed and stressed out. My milk supply was only 120ml for a whole day of pumping. And it was 3 hourly pump, each pump last 1 hour. My highest record was 30ml total during a pump section.
For my 2nd one, due to the fact I reviewed why I failed TBF for my first one, I had prepared myself for the obstacles. Like not eating enough cos the food is not something I like to eat, not being happy in general cos of all the restrictions in confinement etc. I prepared my mother and everyone who believe in confinement that I am going to break confinement. I am going to be HAPPY after the birth of 2nd child instead of being all STRESSED OUT after the birth of my 1st. In the end, it was a huge success. Even without medication, I am able to do TBF 2 weeks after birth. I had bought a small tin of milk powder which I just opened and give to my child whenever I feel tired or stressed out and let my hubby handle the rest. If my child don't suck, I just pump instead.
From my very own experience, I can tell most mummies who failed, it is your stress level. Since you are stressed, you eat less you drink less you also rest less. Don't need to be so bend on TBF like I did with my first and you'll start to relax and succeed instead.
Like for my 2nd child, I only started taking supplements and medication when he is on a growth spurt and I keep reminding myself that even if my BM is to drop to zero immediately. He is having a much better life than my first who got only 1 bottle of BM per day and only for 1 month.
Mummies, remember that BF is hard work. So try to relax. A child needs a happy caring mummy more than he needs breast milk. This is what my LC told me when I failed for my 1st.
Added: My colleague also said this, Our bodies are all "selfish" in the sense that if your body can't even support your own needs, it will not try to support others' needs (like producing milk for your baby).