How long does it take to see results with L-theanine? Understanding the timeline
                                
                                
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                                    4 min read                                
                            
                                Within 30 to 60 minutes of consumption, most users begin to feel the relaxing effects of L-theanine. Knowing how long does it take to see results with L-theanine, however, depends on whether you are looking for immediate relief from stress or gradual improvements in sleep and cognitive function.