Green tea's real active might be an amino acid, not a catechin

L-theanine ,the amino acid that promotes alpha brain wave activity, is naturally co-present with EGCG in green tea. The calming focus of tea (vs. the jitteriness of coffee) is an L-theanine effect, not a catechin effect. Yet the entire green tea extract market is standardized on catechins/EGCG. The L-theanine is stripped out during most extraction processes. You extract the antioxidant but discard the nootropic.Publications of interest:https://pubmed.ncbi.nlm.nih.gov/18296328/https://pubmed.ncbi.nlm.nih.gov/18841456/https://pubmed.ncbi.nlm.nih.gov/23883567/