AC-11®: a patented bioactive rainforest phytonutrient extract that supports cellular health, cognitive performance, natural energy metabolism, and antioxidant activity, helping your body respond to everyday stressors and promoting overall vitality.* AC-11® is a Patented Extract of Uncaria Tomentosa, standardized to 8% minimum CAEs. AC-11®is a Registered Trademark of Optigenex Inc. Protected by U.S. Patent Nos 10,098,922; 9,457,009; 9,889,107; and 11,883,457.