Caffeine smart*: designed for your study sessions
Caffeine smart* 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 mental performance. Vitamin B6 helps to reduce fatigue, while zinc supports 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 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 concentration in the blood, while total caffeine exposure remained similar (Thanawala et al., 2024).
When study sessions get longer, both caffeine and how it’s released matter.
This pattern makes CaffXtend® fit especially well in routines that require continuity: full mornings of study, prep for extensive syllabi, classes, practicals, 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 composition, vegan-friendly and made without artificial colorants, preservatives or genetically modified organisms.
Is it for you?
It’s especially aimed at university students, job applicants and people going through periods of high mental demand. It can also fit professionals with long days, shifts or tasks that require staying alert and focused.
Its capsule format makes it easy to add at the start of the day or before a study block. Since it contains prolonged-release caffeine, leave enough time before sleep and always follow the directions on the packaging.
How to complete your routine without adding more caffeine
If you want to extend your routine, you can choose products that don’t provide another caffeine source:
- Brain Care*: a broader formula with plant extracts, citicoline, phosphatidylserine, vitamins and minerals for days when 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 Cafeína inteligente*
Why is it called “inteligente”?
Because it combines prolonged-release caffeine with ingredients associated with mental performance. Caffeine helps to increase alertness and improve concentration, while pantothenic acid contributes to normal mental performance.
What differentiates CaffXtend® from conventional caffeine?
CaffXtend® is microencapsulated to gradually release caffeine for up to 12 hours. Its maximum blood concentration is reached later than with immediate-release caffeine, resulting in a more progressive profile.
When is it recommended to take?
Particularly suitable at the start of the day or before a long study or work session. Because of its prolonged release, it’s preferable to avoid taking it close to 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, total intake should be considered.
Does it taste like coffee?
No. Although caffeine comes from coffee beans, it’s presented in capsules and doesn’t impart the characteristic taste of the drink.
Is it only for students?
No. It can also fit adults with long professional days, shifts or tasks that require attention and concentration.
A caffeine designed for days that demand more
Caffeine inteligente* brings together natural prolonged-release caffeine CaffXtend®, L-theanine, pantothenic acid, vitamin B6 and zinc in a practical, vegan, clean label formula. A different option for those seeking caffeine with a more progressive release pattern and a composition specially crafted for study periods and intense mental work.
Scientific literature
- 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.
* Pantothenic acid contributes to normal mental performance.
