Rancidity is the greatest challenge you'll encounter when shopping for a CLA supplement. Inferior products are often rancid either due to the manufacturing process or because of overexposure to oxygen.
That's why we use a manufacturer that commits to strict standards and why we use capliques to encase CLA in. Capliques provide a strong barrier against oxygen to ensure your product stays as fresh as possible.
With Dr. Mercola's CLA, you can be assured you're getting the purest of CLA.