It has been working for me quite well at 4 grams a day. (2 in the AM, 2 in the PM.) I wasn't sure if it was doing much of anything for me until this X-mas break. (Hard to tell because it is gradual....) I didn't take any as I was running around visiting and all. I definately noticed an increase in breaking out in just the week or so I stopped taking it. I won't stop again.
It's cheap and if nothing else, worth a try to see if it works for you.
.02,
Joker