Its hard to say exactly how well this product works. I had zero high or low estrogen problems while taking this. No gyno, and no achy joints either. I think this kept estro in the low- normal range cause I was looking lean and dry while taking it.
As far as liver protection... hard to tell without some bloodwork, but my urine was cleaner than ever while taking this. I stacked it with cycle assist for 2 weeks, then dropped the CA, and everything kept running smooth.
Great bottle design, adequate estrogen and liver protection... sounds like a solid product to me. I recommend it!