Supports optimal brain magnesium levels to help cognitive function learning ability and working memory. Animal research suggests that magnesium-l-threonate may support synaptic plasticity and density in the regions of the hippocampus correlated with learning and memory. In a clinical trial of 44 participants aged 50-70 magnesium l-threonate (Magtein) provided significant support for cognitive processing speed executive function and overall cognitive ability after only 6 weeks. An in vitro study demonstrated that PhytoMemory a blend of blueberry strawberry and spinach extracts maintained healthy activity of prolyl endopeptidase (PEP) a protein involved in learning and memory. Consumption of blueberries strawberries and spinach has been associated with brain health in clinical studies.