Lemon Balm for Cognitive Function

Research suggests that lemon balm may offer modest benefits for mood and certain aspects of cognitive performance, particularly in healthy adults under mentally demanding conditions, though the evidence base remains limited and findings are not entirely consistent. The available studies include two randomized controlled trials and two reviews, with the RCTs generally finding supportive results — such as improvements in executive function and recovery of calmness after cognitively demanding tasks — while the reviews characterize the broader evidence as mixed, noting that lemon balm's clearest clinical signal in dementia-related research may be in reducing agitation rather than directly enhancing cognition. Studies indicate that effects appear to depend on factors such as dose, delivery format, and the specific cognitive or mood outcomes being measured, and some findings suggest trade-offs where benefits in one area of performance may come at the cost of another. Overall, while early findings are intriguing, researchers and reviewers consistently highlight the need for more rigorous and larger-scale trials before firm conclusions can be drawn about lemon balm's role in supporting cognitive function.