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Energy and focus; Mental clarity; Alertness; Active lifestyle support
Adults seeking a calm yet alert focus for study or work, or people with active lifestyles looking for convenient daytime energy support.
Take 1 tablet once or twice daily, preferably earlier in the day to minimise sleep disruption; taking with food may improve tolerance for those sensitive to caffeine.
Non-GMO; Free of sugar, starch, yeast, soya, maize, wheat, egg, artificial colours, flavours, and preservatives.
L-theanine crosses the blood–brain barrier and may modulate alpha brain waves and neurotransmitters such as GABA and glutamate to promote a calm yet alert state.
Caution: May cause drowsiness in some people; avoid before tasks requiring full alertness until you know your response.
Caffeine blocks adenosine receptors in the brain, which may reduce perceived fatigue and support alertness and concentration.
Caution: Limit other sources of caffeine to avoid jitteriness and sleep disruption, especially later in the day.
Calcium supports normal nerve transmission and muscle function as an essential electrolyte and structural mineral.
Caution: Take away from high-dose iron supplements as they may compete for absorption.
Caffeine promotes alertness by reducing adenosine signalling, while L-theanine may encourage a calm, focused mental state through neurotransmitter modulation. Together they may support smooth, sustained focus with fewer stimulant-related jitters. Calcium provides a small amount of mineral support for normal neuromuscular function.
Label Warning: Consult a healthcare provider if pregnant, breastfeeding, taking any medicines, or planning medical procedures. Do not exceed the recommended dose. Food supplements are not a substitute for a varied, balanced diet and healthy lifestyle.
Who should be cautious: People sensitive to stimulants or with sleep difficulties. Those with high blood pressure, heart concerns, anxiety, or gastrointestinal sensitivity may wish to use caution with caffeine. People on calcium-sensitive medicines such as certain antibiotics or thyroid medications may need to separate dosing. If combining with medications, especially those that may interact with calcium or stimulants, discuss with a healthcare provider before use.
Storage: Store in a cool, dry place.
This product is guaranteed authentic and backed by our easy returns and refunds policy. Details
L-Theanine may support better sleep quality, complementing sleep formulas to enhance restful sleep.
AI generated. Not medical advice.
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Boosts energy & mental focus.
Sports nutrition endurance & energy.
As a food supplement, take 1 tablet 1-2 times daily, or as directed by your qualified healthcare provider.
calcium carbonate, microcrystalline cellulose, croscarmellose sodium, stearic acid, silicon dioxide, plant-based magnesium stearate, hypromellose and polyethylene glycol.
Free of sugar, starch, yeast, soya, maize, wheat, egg, artificial colours, Flavours, & preservatives.
Consult with your healthcare provider if you are pregnant, nursing, taking any medicines or planning any medical procedures. Do not exceed the recommended dose. Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle.
Store in a cool, dry place. Do not use if the safety seal is broken or missing. Keep out of reach of children.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally be despatched with alternative packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and do not rely solely on the information provided by iHerb. This website has been machine translated as a courtesy to customers. iHerb does not represent or warrant that the translations are complete or error-free and iHerb is not responsible for any translation errors or omissions.
| Supplement information | ||
| Serving size:one tablet | ||
| Servings per container:120 | ||
| Amount per serving | %Daily Value† | |
| Calcium (Calcium Carbonate) | 75 mg | 6% |
| L-theanine | 200 mg | † |
| caffeine | 100 mg | † |
| †Reference intake not established. | ||
