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Sustained concentration relies on dopamine synthesis and efficient cortical blood flow. Nutrient deficits or prolonged stress quickly blunt these pathways. Tyrosine and Rhodiola boost catecholamine availability, whereas theanine raises alpha-wave activity for calm alertness. Lion’s mane plus magnesium bisglycinate protect synaptic membranes, delivering sharper working memory without stimulants.
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🇺🇸 Ship from USA · On Agora since 2026
$70.00