What Is Caffeine – And Why It Works So Well

Caffeine is the world’s favorite natural stimulant — and for good reason. Found in coffee, tea, guarana, and even cocoa, caffeine is nature’s way of helping us wake up, focus, and power through the day.

At Vesa Labs, we harness clean caffeine from guarana, a fruit native to the Amazon, to fuel our Energy Gummies. But what exactly is caffeine doing in your body?

How Caffeine Works

Chemically known as 1,3,7-trimethylxanthine, caffeine is a bitter-tasting alkaloid that works as an ergogenic aid — meaning it can boost physical and mental performance (Shearer & Graham, 2014).

Once consumed, caffeine enters your bloodstream and crosses into the brain, where it blocks adenosine, the neurotransmitter responsible for making you feel tired. The result?

• Increased alertness

• Reduced fatigue

• Improved focus and reaction time

It also boosts levels of key neurotransmitters like dopamine and noradrenaline, and triggers a release of adrenaline — all of which combine to make you feel sharper, faster, and more energized (Ferré, 2007; Sebastiao & Ribeiro, 2009).

Why Gummies Hit Different

Most caffeine sources — like coffee or energy drinks — need to be digested first, taking up to 45 minutes before you feel anything. Vesa Labs Energy Gummies are different.

Thanks to oral mucosal absorption, our gummies start working in just 5 to 10 minutes — no brewing, no waiting, no crash.

Each gummy delivers a clean 15 mg dose of natural caffeine, along with vitamin B6 and B12, to support energy metabolism and long-lasting clarity.

Health Benefits Beyond Energy

Caffeine’s impact goes beyond a quick buzz. Studies show that regular, moderate intake may be linked to:

• Lower risk of type 2 diabetes and obesity (Heckman et al., 2010)

• Reduced risk of Parkinson’s and Alzheimer’s disease (Palacios et al., 2012; Eskelinen et al., 2010)

• Enhanced athletic performance (Burke et al., 2013)

How Much Caffeine Is Safe?

According to the European Food Safety Authority (EFSA, 2015):

• Up to 200 mg per serving and 400 mg per day is safe for healthy adults

• Pregnant women should consume less than 200 mg per day and consult with doctor.

Each Vesa Labs gummy contains just 15 mg, so you stay in full control of your dose — whether you need a micro-boost or a full-on energy lift.

Caffeine, Done Better.

Caffeine is powerful — and when delivered cleanly, it’s a game changer. With Vesa Labs Energy Gummies, you get all the benefits of caffeine and B-vitamins, with none of the crash, sugar spikes, or bitter aftertaste.
Just fast, functional energy — whenever you need it.

Sources:

Burke, L., Desbrow, B., & Spriet, L. (2013). Caffeine for sports performance. Human Kinetics.

EFSA NDA Panel (EFSA Panel on Dietetic Products, Nutrition and Allergies). (2015). Scientific Opinion on the safety of caffeine. EFSA J. 13:4102, doi:10.2903/j.efsa.2015.4102

Eskelinen, M. H., & Kivipelto, M. (2010). Caffeine as a protective factor in dementia and Alzheimer's disease. Journal of Alzheimer's Disease, 20(s1), S167-S174.

Ferré, S. (2008). An update on the mechanisms of the psychostimulant effects of caffeine. Journal of Neurochemistry, 105(4), 1067-1079.

Heckman, M. A., Weil, J. and De Mejia, E. G. (2010), Caffeine (1, 3, 7-trimethylxanthine) in Foods: A Comprehensive Review on Consumption, Functionality, Safetreduce our feeling y, and Regulatory Matters. Journal of Food Science, 75: R77–R87. doi:10.1111/j.1750-3841.2010.01561.x

Palacios, N., Gao, X., McCullough, M. L., Schwarzschild, M. A., Shah, R., Gapstur, S., & Ascherio, A. (2012). Caffeine and risk of Parkinson's disease in a large cohort of men and women. Movement Disorders, 27(10), 1276-1282.

Sebastiao, A. M., & Ribeiro, J. A. (2009). Adenosine receptors and the central nervous system. Adenosine receptors in health and disease, 471-534.

Shearer, J., & Graham, T. E. (2014). Performance effects and metabolic consequences of caffeine and caffeinated energy drink consumption on glucose disposal. Nutrition Reviews, 72(suppl_1), 121-136.