How long does it take for 120mg of caffeine to wear off?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                The half-life of caffeine averages 4 to 6 hours in healthy adults, but for a 120mg dose, the duration of noticeable effects varies significantly based on individual factors like genetics and tolerance. This makes predicting the exact "wear off" time a complex, personalized matter.