Posted by iHerb Customer on Aug 18, 2008 | Verified Purchase
I previously used L-Carnitine Liquie 1000mg from fitness labs and got such an enormous amount of energy from it that I thought by going to this 3000mg I could save money because I would be taking 3x as much. NOT SO! I in fact get tired using the 3000mg. I suppose because it is not pure perhaps. I don't know, but I know it does nothing and is not worth the money.