SLOW-RELEASE CAFFEINE (400mg CaffXtend®)

While other products made from regular presentations of immediate-release caffeine release more than 95% of their content in the first 5 minutes (Sager et al., 2019).

In convenient capsule size.

When to choose slow-release caffeine versus fast-absorbing caffeine?

Immediately absorbed caffeine is excellent for use before short workouts, lasting 1-2 hours, as it peaks and then the concentration drops rapidly.

However, when you are studying, for example, this 'dip' is very noticeable, it is known as a 'caffeine crash', which makes you feel much more tired after a few hours.

Slow-release caffeine by CaffXtend® is the best choice for students and workers as, thanks to its much longer release, recent studies have shown that the effects achieved are greater from consumption up to 8 hours later (ideal for long study sessions and working days), causing fewer jitters than immediate caffeine, as it does not reach such high peaks in the blood.

You can read more about this topic in the following scientific study::

•  Thanawala, S., Shah, R., Abiraamasundari, R., Senthurselvi, R., & Desomayanandam, P. (2022). 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, 1–15.

Vegan-friendly

Slow-release caffeine (400mg of CaffXtend^®) is a product suitable for vegetarian and vegan diets.

High vitamin content

What products can you combine this caffeine with? We recommend you try:

• L-Theanine.
• Huperzine A.

Further reading on caffeine

• Sager, M., Schick, P., Mischek, M., Schulze, C., Hasan, M., Kromrey, M. L., … Koziolek, M. (2019). Comparison of in vitro and in vivo results using the gastroduo and the salivary tracer technique: Immediate release dosage forms under fasting conditions. Pharmaceutics, 11(12).
• Grgic, J., Grgic, I., Pickering, C., Schoenfeld, B. J., Bishop, D. J., & Pedisic, Z. (2019). Wake up and smell the coffee: Caffeine supplementation and exercise performance - An umbrella review of 21 published meta-analyses. British Journal of Sports Medicine, 54(11), 681–688.
• Goldstein, E. R., Ziegenfuss, T., Kalman, D., Kreider, R., Campbell, B., Wilborn, C., … Antonio, J. (2010). International society of sports nutrition position stand: Caffeine and performance. Journal of the International Society of Sports Nutrition, 7(1), 5.
• Cappelletti, S., Daria, P., Sani, G., & Aromatario, M. (2014). Caffeine: Cognitive and Physical Performance Enhancer or Psychoactive Drug? Current Neuropharmacology, 13(1), 71–88.

¹ The effect is obtained with an intake of at least 75mg of caffeine..

² The effect is obtained with an intake of 3mg of caffeine/kg body weight, one hour before exercise. This guidance is aimed at adults who engage in endurance exercise.

³ The effect is obtained with an intake of 4mg of caffeine/kg body weight, one hour before exercise. This guidance is aimed at adults who engage in endurance exercise.