Nature's Way Green Tea Standardized Description: Low Caffeine Levels with Powerful Antioxidants Green Tea extract is standardized to 95% polyphenols. Nature's Way Green Tea extract is guaranteed to contain 75% total catechins with 55% epigallocatechin gallate (EGCG) a powerful antioxidant. Nature's Way Standardized Green Tea is a low caffeine extract. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.