It is common for college students to face focus and memory challenges, often linked to stress or poor sleep. There is no "magic pill" for memory. Prescription stimulants (like methylphenidate) are only for diagnosed conditions like ADHD and require strict medical supervision. Brain supplements (nootropics) lack strong scientific evidence, though caffeine combined with L-theanine can temporarily boost alertness. The most effective, proven "brain boosters" are 7-9 hours of sleep, a balanced diet, regular exercise, and active study techniques. I recommend speaking with your university health services to rule out issues like vitamin deficiencies and to discuss safe options.