What is caffeine?
Caffeine is a natural substance found in tea, coffee beans, and cacao. It is a central nervous system stimulant, commonly used in everyday life, and is often consumed through coffee, tea, soft drinks, or energy drinks.
The benefits of caffeine
Commonly known to provide energy and alertness, in recent years, caffeine has been a major focus in a great deal of scientific studies. Amongst sport scientists around the world, results have led to a general consensus: the effects of caffeine are beneficial to athletic performance. Various research shows:
- Caffeine enhances performance, attention, and alertness. 
- Benefits on endurance performance from a mental standpoint. Fatigue, by engaging in hard performance tasks, is reduced. 
- Caffeine burns calories. It stimulates thermogenesis, affecting the way your body generates heat and energy from digesting food. 
- Increased levels of glycogen — the main fuel for muscles — after strenuous exercise, even more than with ingesting carbohydrates alone. Higher levels make for better training and recovery. 
- Improvements on one’s physical exertion, possibly further enhancing the absorption and use of glycogen. 
- Appetite suppression: caffeine temporarily reduces the desire to eat. 
- Taking caffeine after a learning session helps to boost long-term memory. 
- Regular, lifelong, moderate consumption of caffeine may slowdown physiological, age-related cognitive decline. 
- and Increased level of enjoyment from exercise as a result from the energy boost, resulting in burning more calories during, and consuming fewer calories after exercise. 
Caffeine has been permitted for use by professional athletes since 2004 by the World Anti-Doping Agency. FIRST has been thoroughly tested and is approved by the NZVT for anti-doping to guarantee athletes certainty. NZVT is the Dutch organization that tests supplements for doping pollution and is accepted worldwide as an official anti-doping label. So whether you are just a regular gym enthusiast or pro-athlete alike, you can count on FIRST to keep you on track.
Often times, athletes consume caffeine in several different forms, usually before training and major sporting events. For athletes, caffeine can improve one’s ability to perform over a long period of time, and can make the difference between winning and losing.
Alternative forms of caffeine can be harder to dose and remain consistent enough to get the most out of its effects. Further research shows that the amount of caffeine in specific supplements don’t reflect the label amount accurately, nor do they show the same number and quantity over a period of time.  With FIRST, synthetic caffeine is used to have full control and guarantee the proper dosage for optimal performance, clearing any hazard of inconsistency.
As a gum, it is more efficient in consumption and is also absorbed much faster in contrast to beverages. Through the mucus membranes, FIRST is absorbed within 10 minutes of chewing; while drinks and pills absorbed through digestion take an average of 45 minutes. 
Learn more about all the ingredients used in FIRST here.
Learn more about how the FIRST works to provide top athletic performance here.
List of research references:
Ad 1. A review of caffeine's effects on cognitive, physical and occupational performance. McLellan, TM et al. 2016.
Ad 2. Ref. Rafael Azevedo et al. EJAP. 2016
Ad 3. Caffeine: a double-blind, placebo-controlled study of its thermogenic, metabolic, and cardiovascular effects in healthy volunteers. Astrup, A et al. 1990
Ad 4. Caffeine ingestion and cycling power output in a low or normal muscle glycogen state. Lane, SC et al. 2013.
Ad 5Post-study caffeine administration enhances memory consolidation in humans. Borota d. et al. 2014.
Ad 6. Caffeine consumption around an exercise bout: effects on energy expenditure, energy intake, and exercise enjoyment. Schubert MM et al. 2014
Ad 7. The rate of absorption and relative bioavailability of caffeine administered in chewing gum versus capsules to normal healthy volunteers. Kamimori, GH et al. 2002.
Ad 8. Variability of Stimulant Levels in Nine Sports Supplements Over a 9-Month Period. Attipoe et al. 2016.
Ad 9. Chronic Ingestion of a Low Dose of Caffeine Induces Tolerance to the Performance Benefits of Caffeine. R, Beaumont et al. J Sports Sci 1-8. 2016.
Ad 10. Coffee consumption and cognitive function among older adults. M, Johnson-Kozlow et al. 2002