What Caffeine + L-Theanine Together Can Do - Key Benefits

• Enhanced focus, attention, speed & mental performance: A controlled study found that ~97 mg L-Theanine + ~40 mg caffeine significantly improved task-switching accuracy and self-reported alertness, while reducing tiredness.
  Another study reported that combining caffeine (150 mg) and L-Theanine (250 mg) improved reaction time, working memory speed and accuracy on demanding mental tasks compared with a placebo.
  In sleep-deprived individuals, a higher-dose combo (200 mg L-Theanine + 160 mg caffeine) improved selective attention (hit-rate, target recognition) and reaction time more than placebo - an effect seen in brain activity (ERP measures) too.
  A review concluded that the combination tends to improve short-term sustained attention, working memory, and overall cognitive performance (attention, inhibitory control, decreased mind-wandering) in both healthy people and individuals with attentional difficulties.

• "Calm alertness": reduced jitteriness/stress compared with caffeine alone
  L-Theanine alone has been shown to promote relaxation and reduce stress and anxiety - potentially by increasing GABA and other calming neurotransmitters.
  The L-Theanine + caffeine combo seems to mitigate some of the unwanted side-effects of caffeine (like over-arousal, jitteriness, anxiety), while preserving or enhancing cognitive benefits - leading to a more balanced "alert but calm" state.
  One study found that L-Theanine decreased the blood-pressure increases caused by mental stress tasks - suggesting it can dampen physiological stress responses.

• Improved cognitive flexibility, working memory & processing speed
  Evidence points to improved performance on tasks requiring rapid information processing, attention-switching, working memory, and reaction speed under the combo versus placebo or caffeine alone.
  This may translate into improved performance in demanding mental work - studying, office work, creative tasks, multitasking - especially under stress or mild fatigue.

• Better mood / less mental fatigue
  The combination has been shown to reduce self-reported mental fatigue, increase alertness, and improve mood/subjective feelings of mental energy.
  L-Theanine alone may support relaxation, GABA & serotonin modulation - which can help with stress, anxiety, and possibly improve overall mental calmness.

• Potential neuroprotective / brain-health benefits (less strongly proven, more speculative)
  Because L-Theanine increases alpha-wave activity in the brain (associated with a relaxed but alert mental state), some people propose it could support brain health, foster calm focus, and reduce over-excitatory stress.
  In day-to-day life, the combo may help maintain mental clarity during periods of stress or sleep-deprivation (as the study on sleep-deprived adults demonstrates) - so there is a case that it supports cognitive resilience under less-than-ideal conditions.

What's in the box
1 x Kea Organics - L - Theanine & Caffeine - 60 Veggie Capsules

Disclaimer
DISCLAIMER: This product may be a complementary medicine and/or not have been evaluated and verified by the South African Health Products Regulatory Authority for its quality, safety or intended use. Use of this product is therefore not intended to compensate for diagnosis, treatment, cure, or mitigation of medical conditions and must not substitute the obtaining of medical advice from a registered health professional for any health or health-related conditions.