Smart caffeine*: designed for your study sessions
Smart caffeine* from EssentialSeries is a vegetable capsule dietary supplement that combines natural anhydrous caffeine from coffee beans, L-theanine, pantothenic acid, vitamin B6 and zinc.
Caffeine helps to increase alertness and improve concentration, two aspects especially interesting during exam periods, exam preparation, demanding projects or long days of mental work.
Its name also reflects the presence of pantothenic acid, which contributes to normal intellectual performance. Vitamin B6 helps to reduce fatigue, while zinc contributes to normal cognitive function.
CaffXtend™: the difference is in how it’s released
Not all caffeine follows the same release pattern. For this formula we chose CaffXtend™, a brand raw material, made with natural caffeine microencapsulated in a matrix designed to release gradually over a period of up to 12 hours.
Compared with immediate-release caffeine, which quickly reaches its maximum concentration, CaffXtend™ offers a more gradual profile. In a comparative study with healthy volunteers, prolonged-release caffeine took more than four times to reach its maximum blood concentration, maintaining a similar total caffeine exposure (Thanawala et al., 2024).
When the study session lengthens, both caffeine and how it’s released matter.
This pattern makes CaffXtend™ particularly well suited to routines requiring continuity: full mornings of study, preparation for extensive syllabi, classes, practice, projects or long professional days.
A combination created for mental work
Caffeine is the star, but it’s not alone. The formula includes L-theanine, a naturally occurring amino acid in tea leaves, along with a selection of vitamins and minerals designed to complete the product.
A well‑rounded formula: natural prolonged-release caffeine CaffXtend™, L-theanine, pantothenic acid, vitamin B6 and zinc in practical vegetable capsules.
Besides using a brand raw material with a studied release profile, we’ve gone for a clean label formulation, suitable for vegans and made without artificial colorants, preservatives or genetically modified organisms.
Is this product for you?
It’s especially designed for university students, job applicants and people going through periods of high mental demand. It can also fit professionals with long days, shift work or tasks requiring maintained alertness and concentration.
Its capsule format makes it easy to incorporate at the start of the day or before a study block. Since it contains prolonged-release caffeine, leave enough time before bedtime and always follow the usage instructions on the packaging.
How to complete your routine without adding more caffeine
If you want to expand your routine, you can choose products that don’t provide another source of caffeine:
- Brain Care*: a broader formula with plant extracts, citicoline, phosphatidylserine, vitamins and minerals for days you prefer a caffeine-free routine.
- Evobrain: stimulant-free formula with ALCAR, citicoline, plant extracts, pantothenic acid and zinc, designed to accompany periods of high intellectual demand.
Frequently asked questions about Smart caffeine*
Why is it called “smart”?
Because it combines prolonged-release caffeine with ingredients related to intellectual performance. Caffeine helps to increase alertness and improve concentration, while pantothenic acid contributes to normal intellectual performance.
What differentiates CaffXtend™ from conventional caffeine?
CaffXtend™ is microencapsulated to release caffeine gradually for up to 12 hours. Its peak blood concentration is reached later than with immediate-release caffeine, yielding a more progressive profile.
When is it recommended to take it?
Particularly suitable at the start of the day or before a long study or work session. Because of its prolonged release, it’s best to avoid taking it close to your usual bedtime.
Can I combine it with coffee or pre-workout products?
It already provides caffeine, so it’s usually not necessary to add coffee, energy drinks, pre-workout products or other caffeine-containing supplements. If using multiple sources, you must consider the total amount consumed.
Does it taste like coffee?
No. Although caffeine comes from coffee beans, it comes in capsules and doesn’t provide the characteristic taste of the drink.
Is it intended only for students?
No. It can also suit adults with long professional days, shift work or tasks that require attention and concentration.
A caffeine designed for days that demand more
Smart caffeine* brings together naturally prolonged-release caffeine CaffXtend™, L-theanine, pantothenic acid, vitamin B6 and zinc in a practical, vegan and clean label formula. A different option for those seeking caffeine with a more progressive release pattern and a composition tailored for study and intense mental work periods.
Scientific bibliography
- Thanawala, S., Shah, R., Abiraamasundari, R., Senthurselvi, R. y Desomayanandam, P. (2023). Comparative Bioavailability and Benefits on Mental Functions of Novel Extended-Release Caffeine Capsules against Immediate-Release Caffeine Capsules: An Open-Label, Randomized, Cross-over, Single-Dose Two-Way Crossover Study. Journal of Dietary Supplements.
- Giesbrecht, T., Rycroft, J. A., Rowson, M. J. y De Bruin, E. A. (2010). The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutritional Neuroscience, 13(6), 283-290.
- Kahathuduwa, C. N., Dassanayake, T. L., Amarakoon, A. M. T. y Weerasinghe, V. S. (2017). Acute effects of theanine, caffeine and theanine-caffeine combination on attention. Nutritional Neuroscience, 20(6), 369-377.
* The pantothenic acid contributes to normal intellectual performance.
