From the manufacturer
What does Life Extension do to ensure the quality of its products?
We focus on two specific areas.
*Raw Materials: Unlike other supplement companies, the ingredients that go into our supplements are not chosen based on cost. Instead they are chosen based on purity (to ensure contaminants such as microbes and heavy metals comply with regulatory and GMPs requirements), potency, and usage in successful scientific research.
*Validation of the Efficacy of Ingredients by Scientific Research: We use ingredients and dosages that accurately replicate the most successful results obtained in scientific studies for maximum efficacy.