Do not purchase this product. I purchased the 4 bottle pack and took it for 6 weeks. I lift 5 days a week and am very careful about my diet and water intake but I had splitting headaches every day, from the first day to the last, that I took this product. The day I stopped taking it was the day the headaches stopped. I wasn't worried though because they have an "iron clad guarantee" right? Not so much. When I contacted customer service I was told that the guarantee was for people who bought 90 days worth and had used it for 90 days. Because it gave me migraine headaches for 6 weeks I was not able to receive the refund. They did agree to refund the unused portion minus a $35 "processing fee" as well as shipping costs. So after it was all said and done I would have gotten about 25% of my money back. I saw no noticeable positive effects from this product, only headaches. Their "guarantee" is worthless. Save your money and buy some creatine and quality protein and you will be much better off.
Bottom Line: No, I would not recommend this to a friend
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