Is Extra Strength Astaxanthin Independently tested for purity and potency?

Yes, each batch of this product is analyzed by an independent laboratory and is subject to more than a dozen discrete tests to ensure the purity and potency of the astaxanthin, and to make sure it is free of all solvents, allergens and toxins.

Plus: An all-natural O2B® peroxidation blocker process is used to prevent degradation and provide a superior 4 year (or more) of shelf life and stability at room temperature.