The primary active compound in olive leaf extract, studied for antioxidant and cardiovascular support.
Oleuropein is the primary bioactive compound in olive leaf extract, researched for antioxidant activity and cardiovascular support, with some research extending into circulatory health more broadly.
Healthy circulation is relevant to brain health generally, since the brain depends on steady blood flow, which is the likely reasoning for its inclusion here.
If you have a known olive allergy, this is the ingredient to be aware of — it's explicitly named in the brand's own allergy caution.