WARNING! CAFFEINE may be HIGHLY TOXIC or LIFE THREATENING when consumed in
amounts greater than recommended. Consumption of as little as a few grams may result in DEATH. Do not
consume more than 200 milligrams (mg) of caffeine in a single serving, or more than 600 milligrams (mg) per
day. Caffeine consumption may result in insomnia, difficulty sleeping and withdrawal headaches. Do not take
caffeine if you have a history of heart disease, or if you are pregnant or nursing. Consult your physician
before taking this product.
What Does Caffeine Do?
Caffeine is a stimulant and naturally occurring organic compound found in coffee beans, tea leaves, and cocoa
beans. Most people consume caffeine through beverages like coffee, tea, soda, and energy drinks. Chocolate
products also often contain caffeine. It delays fatigue or drowsiness by stimulating the central and
autonomic nervous systems. It induces alertness by temporarily preventing adenosine from interacting with
its receptor and signaling for the body to become drowsy. In addition to boosting energy, caffeine can also
enhance cognitive function, exercise performance, and fat burn.
What is Mannitol?
Mannitol is a low-calorie sweetener and sugar alcohol. Many individuals use mannitol as a sugar substitute to
support weight loss efforts. It’s also a popular option for individuals monitoring their glucose as it has a
low glycemic index (GI) of two compared to sugar’s GI of 65. It has non-hygroscopic properties that help
prevent supplement powders from caking or clumping.
Potential Caffeine Benefits
Caffeine for Energy Boost
Many people start their day with a cup of coffee for its caffeine to invigorate their minds and shake off any
lingering sleepiness. Caffeine has a long history as an energy booster and is the most widely used
psychoactive substance worldwide. It provides energy by blocking adenosine-induced drowsiness. It also
diminishes fatigue by increasing dopamine levels.
Potential Caffeine Benefits for Exercise Performance
Caffeine is a frequent ingredient in pre-workout supplements as an energy booster for early morning workouts
and an exercise performance enhancer. A plethora of studies show that consuming caffeine before a workout
improves exercise endurance. Caffeine also reduced participants’ perception of how much effort and energy
they needed for workouts. The research notes that caffeine enhances exercise performance in individuals of
all ages, fitness levels, and body fat compositions. Caffeine may also improve power output in some
Caffeine Appetite Suppressant and Fat Burner
Caffeine may support weight loss efforts through several mechanisms. It promotes a higher calorie burn while
at rest by increasing metabolic rate. It also disrupts how the body typically stores fat. Boosting energy
and delaying fatigue can help individuals reach their recommended daily physical activity goals. Research
also shows that caffeine supplements like green coffee bean extract help suppress appetite in some
Caffeine and L-Theanine for Focus
Caffeine and l-theanine are synergistic compounds that work together to improve focus better than either
supplement can achieve alone. Caffeine can attenuate the negative effects of fatigue and improve alertness.
L-Theanine is the primary active component found in tea leaves. L-Theanine acts as a caffeine modulator to
reduce the negative effects of caffeine, such as jitters or sleep disruptions, without inducing sleepiness.
Taking caffeine and l-theanine can also reduce susceptibility to distractions and enhance the ability to
switch between tasks. These effects are more notable among caffeine-naïve individuals.
Potential Caffeine Side Effects
Individuals who do not typically consume caffeine are more likely to experience mild side effects, such as
jitteriness, headache, upset stomach, bowel urgency, and sleep disruption. Individuals can reduce the
likelihood of sleep disruptions by only consuming caffeine in the morning. Individuals with IBS, heart
conditions, glaucoma, or GERD should consult a physician before taking caffeine supplements.
Tested by Accredited 3rd Party Labs
PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity
and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.