X-factor is basically the fatty acid arachidonic acid. Most of what I have been reading has it being found in smooth muscle (such as the heart), not
skeletal muscle. Other than the fact that it is involved in the production of prostglandins I don't see much evidence that it can cause a 10 pound
muscle gain over a two month period.
My take: give it several months for the hype to wear down. If it is for real then it will be just like creatine and prohormones, and the buzz will be all over the place.
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