From the Manufacturer:
CLA Extreme combines the benefits that active people are seeking with the proven effectiveness of Conjugated Linoleic Acid (CLA). Before meats and cheeses were as processed as they are today, people's diets used to naturally contain greater quantities of CLA. Now, supplementation is virtually the only way to achieve the same levels of CLA. The effectiveness of CLA Extreme will not diminish over time; there is no need to cycle off the product. CLA Extreme™ will work best for those who exercise regularly, follow a sensible diet and take the product consistently.