Best Caffeine Pills Reviewed (+ Better Alternatives)

In this review, we looked at the best caffeine pills on the market, what they do, along with their benefits, information about their safety, suggested dosage, and potential side effects.

Looking for a powerful nootropic to help you focus and get more done?

Caffeine is one of the most popular nootropics in the world for a good reason. It's effective, affordable, and easy to find. It’s a great choice if you’re looking for an immediate boost in energy and focus.

Whilst most consume caffeine as hot beverages, or energy drinks, to give them the boost they need, the growing popularity of nootropics has seen a rise in the demand for caffeine pills.

Caffeine supplements are powerful nootropics as they have been dosed appropriately. Their effectiveness is profound and they can have great benefits that impact both the body and the mind.

Best Caffeine Pills Reviewed (+ Better Alternatives)

Let's take a closer look at the best caffeine pills on the market, their effects, dosage, and potential side effects down below.

Pure Nootropics Dynamine Capsules

Pure Nootropics Dynamine capsules contain methylliberine as Dynamine. Methylliberine is characterized as a pure alkaloid that comes from coffee and other natural stimulants. Dynamine is made up of Methylliberine and 1,7,9-tetramethyluric acid. This molecular makeup increases the substance's absorbability ensuring that it delivers the required effect.


Dynamine is a leading supplement for its energy-boosting benefits. The capsules contain Methylliberine which derives from coffee and is a natural stimulant. It has been shown to boost energy and reduce fatigue [R].

The product's ingredients contain properties that regulate adenosine from binding to receptors. The effect of this results in a boost of energy without feeling drowsy. Though a derivative of caffeine, Dynmine can produce long-lasting energy without the effects of crashing and feeling lethargy associated with caffeine.

This caffeine nootropic, therefore, surpasses expectations by providing a solution to the effects of caffeine and makes it an ideal solution for those who want a powerful nootropic without experiencing any crashes.

The properties contained in Dynamine work to increase fat-burning potential as well. This effect makes Dynamine a popular choice as a pre-workout supplement. As a derivative of coffee, it also provides metabolism-boosting benefits. Its ability to boost metabolism makes it a popular weight loss supplement as it aids in burning more calories to create a leaner physique.

If you’re looking to lose weight and burn fat, Dynamine is the supplement for it. Established as an energy-boosting supplement, its effect helps to increase fat-burning potential. Increased energy creates an increase in the body’s physical capabilities [R].

It provides long-lasting energy which contributes to burning more calories and burning fat. The supplements work by increasing the body’s oxygen intake which increases the level of fat burning throughout the day.

Dynamine does more than offer energy-boosting benefits, it also provides cognitive boosting benefits. The supplement provides nootropic effects that enable mental clarity and focus which increase attention for enhanced physical and mental performance.

Clinical trials show that this product produces exceptional results when it is combined with Teacrine. With it being combined with Teacrine, the Dynamine capsules can boost energy without having a stimulatory effect on the heart rate or blood pressure [R].

Similarly, toxicology research shows that taking Dynamine alone is believed to not affect blood pressure and the heart rate in the way that caffeine in a coffee can [R].

Other benefits include an increased energy level that contributes to improving mood as prolonged exercise increases the release of endorphins. The result of which is a brighter and more positive mood and a feeling of euphoria.

Additionally, the lethargic effects of caffeine are absent as Dynamine offers a steady dose of energy without feeling depleted or interrupting sleep.

Overall Benefits:

  • Fat-burning potential
  • Enhanced physical capability
  • Increased energy
  • Improved cognitive performance
  • Improved mood


Dynamine capsules contain 100 mg of Methylliberine per 1 capsule. There are 30 and 90 capsules in a bottle depending on which size you choose. The recommended dosage of Dynamine capsules is 1 to 2 capsules daily, or as otherwise directed by a healthcare practitioner. It’s advised that you begin with a lower dose and build it up so that you can see how the body reacts.

Side Effects

Experiencing side effects from Dynamine is rare, however, there is a risk of experiencing side effects from any medication or supplement. Side effects that could be experienced include nausea and dizziness. Toxicology research shows that Dynamine is believed to not affect blood or heart rate.


Pure Nootropics offers Dynamine, a formula, that boosts energy and improves focus. The capsules contain ingredients that derive from a species of coffee.

Their Dynamine capsules offer a subtle but noticeable shift in energy similar to that of the effects caused by caffeine. However, the effects are considerably smoother and offer a clean transition without a jittery buzz.

The effects of Dynamine last for about 3 hours. This makes it an ideal pre-workout supplement. The effects become prevalent 20 minutes after ingestion and the effects will hit their peak after 45 minutes.

Pure Nootropics Caffeine + L-Theanine

Pure Nootropics Caffeine L-theanine contains caffeine from tea (Camellia Sinensis) and L-theanine. Caffeine is commonly known for its energy-boosting benefits.

However, it is also associated with creating feelings of energy depletion and jitteriness. Pure Nootropics' combination of caffeine and L-theanine works to combat the jittery effects of caffeine.

L-theanine is most commonly found in tea leaves and is known for its ability to promote relaxation without causing drowsiness.

Ultimately, Pure Nootropics Caffeine and L-theanine provide the increased positive effects of alertness and cognitive focus created by caffeine with the balance of L-theanine which reduces the negative effects of caffeine.


Caffeine works to improve alertness and attention by blocking adenosine receptors associated with making you feel tired. In doing so, caffeine boosts energy and alertness. It also boosts dopamine which is a neurotransmitter that is responsible for our brain’s reward and pleasure response. This results in creating a feeling of pleasure and improved mood [R].

L-theanine is characterized as a natural amino acid. Studies have shown that L-theanine contains properties that create a state of relaxation and calm and a release of tension by reducing stress and lowering blood pressure and heart rate [R].

It does this by reducing the body’s physiological stress response by mimicking the actions of inhibitory transmitters known as gamma-aminobutyric acid.

This results in it preventing excitatory responses in the brain that would usually increase activity and consequently reduce levels of stress and tension.

Another study found that the combination of caffeine and L-theanine had significant effects in improving cognitive performance by improving memory, attention, and suppressing distraction [R]. Hence, the combination of caffeine and L-theanine are the best for improving long-term focus.

It has been proven that L-theanine and caffeine work together to improve attention by decreasing deviations of attention. The combination works as a dynamic duo that provides a feeling of energy and wakefulness created by the caffeine which is calmed by the effects of L-theanine creating a balance for focus.

Its ability to reduce the susceptibility to distractions and boost cognitive performance makes it a popular supplement choice for studying and working.

Other benefits include its ability to stimulate creativity. The presence of even a small amount of L-theanine is found to increase alpha waves in the brain. The result of this is a relaxed mind that is free of distraction and is able to focus and become creative.

Overall Benefits:

  • Reduced level of stress and tension
  • Increased energy and alertness
  • Improved memory and attention
  • Suppressed distraction


The Caffeine + L-theanine capsules contain 100 mg of caffeine from tea and 200 mg of L-theanine per serving. There are 120 capsules in a bottle. The recommended dosage for these supplements is 1 capsule to be taken daily or as recommended by a healthcare practitioner.

Side Effects

Both caffeine and L-theanine are considered to be safe. However, as with all medication and supplements, there is always a risk of side effects as substances react differently for different people.

When starting any new medication or treatment, it’s important to exercise caution and follow the recommended dosage. Some side effects associated with caffeine and L-theanine include nausea and headache.

It’s advised that L-theanine should not be mixed with blood pressure medications as it has been proven to reduce blood pressure.


Pure Nootropics Caffeine + L-theanine capsules contain a balance of properties that improve cognitive performance and promote relaxation. The combination of the two effects results in an advanced state of focus. Typically, the effects of caffeine and L-theanine last for up to 6 hours. This enables a long duration of steady and advanced focus.

Pure Nootropics Optimal Energy Complex

Pure Nootropics Optimal Energy Complex capsules contain Caffeine anhydrous, L-theanine, Teacrine, Dynamine (Methylliberine), and Theobromine.

The combination of these ingredients creates a powerful energy-boosting supplement. This product stands to be a combination of the effects of Pure Nootropics’ Dynamine capsules and Caffeine and L-theanine capsules. The capsules contain ingredients that create optimum focus, stimulation, and energy.

Pure Nootropics Optimal Energy Complex is one of the most powerful legal nootropics on the market providing a host of benefits from improving cognitive performance and promoting alertness to enhancing mood and creating focus.


Pure Nootropics Optimal Energy Complex provides energy-boosting benefits. The product contains caffeine anhydrous which is a form of caffeine that has been dehydrated and had all the water removed. Caffeine anhydrous offers natural stimulating properties. It works by blocking adenosine receptors in the brain to boost energy without inducing drowsiness and is instead shown to boost energy.

Whilst caffeine anhydrous is highly effective in boosting energy, it is also associated with causing people’s energy to crash causing a lethargic feeling. However, Pure Nootropics curbs this problem by creating a supplement that contains L-theanine, Theobromine and Dynamine.

Theobromine is another naturally occurring stimulant that provides a similar effect as caffeine, however, the core difference between the two is that Theobromine doesn’t stimulate the nervous system.

Therefore, Theobromines stimulate the body and provide long-lasting energy whilst also creating a feeling of being refreshed as it works to reduce the central systolic blood pressure [R]. It does this by reducing the widening of blood vessels.

The combination of caffeine and Theobromine provides powerful energy-boosting benefits that provide long-lasting, stimulating energy that leaves you feeling refreshed and not drowsy.

The Optimal Energy Complex capsules also improve cognitive performance as a result of the presence of caffeine and L-theanine.

Studies have shown that caffeine was found to improve alertness and cognitive performance whilst L-theanine works to increase alpha waves in the brain that relax the mind [R]. This combination results in maximum focus and mental alertness for hours of concentration.

The capsules also contain Theobromine which studies show positively influences physiological processes that consequently improve cognitive function [R]. It enables the mind to focus during moments of sustained mental demand. This is beneficial when it comes to multi-tasking or moments where you require in-depth focus.

The same study also shows that Theobromine interacts with the endothelial function and works by increasing blood flow. The result is reduced mental fatigue and overall cognitive improvement.

Pure Nootropics Optimal Energy Complex capsules also interact with the serotonergic system by causing an increase in the production of dopamine which is related to pleasure. This results in causing pleasure and boosting mood.

Overall Benefits:

  • Energy-boosting
  • Enhanced cognitive performance
  • Sustained focus
  • Mood-boosting


The Optimal Energy Complex capsules contain 100 mg of Caffeine, 200 mg of L-Theanine, 125 of Dynamine (Methylliberine), and 150 mg of Theobromine per 1 capsule.

Side Effects

Pure Nootropics Optimal Energy Complex is one of the most powerful legal stimulants available on the market, that being so, it’s highly advised that no more than 1 capsule be taken a day with food. L-Theanine and Theacrine are generally recognized as safe by the U.S. FDA and Dynamine is considered to have similar effects to Theacrine.

The potential side effects of Optimal Energy Complex include;

  • Side effects associated with caffeine include insomnia, anxiety, nausea, restlessness, and irregular heartbeat. More severe side effects of caffeine may include ketosis, hyperglycemia, and metabolic acidosis. Chronic use of caffeine in large amounts may cause tolerance, addiction, or psychological dependence.
  • Side effects associated with Theobromine are rare. Taken in high doses, it may cause sweating, headaches, and trembling.
  • Side effects associated with L-Theanine are few. Taken in high doses, it may cause increased sleeplessness and headaches.
  • Those who are sensitive to caffeine or stimulants are advised to not use the product as are pregnant and nursing women under the age of 18. Anyone with an existing medical condition or currently taking medication of any kind should exercise caution. It is advised that you consult with a professional practitioner before using the product.


Optimal Energy Complex is a powerful stimulant that provides a host of benefits. Used appropriately, it can promote all the energy-boosting benefits of caffeine without the unwanted effects.

It works to increase attention and focus for maximum concentration as well as enhance mental clarity and cognitive performance. This supplement is a well-rounded nootropic.

Factors to Consider When Choosing the Best Caffeine Pills

  • Power - Caffeine pills alone are considered to be one of the most potent nootropics. However, if you’re looking for that extra step up and are wanting something a little more powerful, look for a supplement that contains a combination of caffeine and L-theanine. This will ensure that you get the energy-boosting benefits without the negative effects of caffeine and instead feel clear and refreshed.
  • Focus - Nootropics for enhanced focus, mental clarity, and concentration are increasing in popularity as there is an increasing demand for stimulants that help people navigate within a competitive society. If you’re looking for a supplement that provides uninterrupted focus, look for a supplement that contains L-theanine. It not only promotes alertness but also works to relax the body at the same time creating an ideal environment for deep focus.
  • Energy - Caffeine is a key component of providing energy-boosting benefits. However, the benefits of caffeine can be accelerated in combination with Dynamine and L-Theanine. Both Dynamine and L-Theanine produce a stimulating effect without interacting with the central nervous system. The result is a long-term boost in energy without the negative effects of caffeine. The negative effects are instead replaced with a feeling of calm which contributes to enhancing physical and mental capabilities.

What are Nootropics?

Nootropics, also commonly referred to as brain-boosters, are known for their stimulating effects that have been proven to enhance brain health and improve cognitive performance. One of the most consumed nootropics is caffeine.

There are two types of nootropics, natural and synthetic. Natural nootropics have been used for centuries in traditional medicine and have had numerous studies that prove their safety and effectiveness when taken appropriately [R].

An example of a natural nootropic is caffeine. Caffeine is a natural substance that provides natural stimulating properties that offer benefits. Natural nootropics are considered to be effective in their use over regular use and sustained use in a pill form.

Synthetic nootropics are also effective. The core difference between natural and synthetic nootropics is that synthetic nootropics are prescription medications. They are medications that are commonly used to treat ADHD and narcolepsy. Whilst effective, synthetic nootropics contain a higher risk of side effects and the misuse of them could be potentially dangerous.

How Do Nootropics Work?

Studies have shown that natural nootropics such as caffeine have been proven to enhance cognitive performance by improving brain function [R]. They have been shown to also improve brain health by increasing the blood circulation to the brain which subsequently delivers a boost of nutrients and oxygen to the brain, enabling it to function more effectively.

The effects of nootropics such as caffeine create benefits of stimulating brain chemicals to boost cell to cell communication. The result is mental clarity and improved focus.

It also works to improve circulation in the brain and oxygen flow which studies have shown increases the production of nutritional compounds that remove harmful neurotoxins by improving brain health. The increased flow of blood and oxygen also works to increase the amplitude of brain waves to improve focus and promote relaxation.

Side Effects of Nootropics

Like with taking any medication, there is always a risk of side effects. However, the nootropic supplements presented contain wholly natural ingredients which are generally considered safe. However, it’s important to always exercise caution and only consume the recommended amount.

As with starting any new medication or supplement, it’s advised that you consult your doctor before using a new supplement, especially if you have an existing health issue or are currently taking any medication.

Caffeine Pill Reviews

According to Zacharia W:

Optimal energy complex - “Good, clean feeling energy, no jitters or crashes. I have a very irregular work schedule and one of these will help me wake up, no matter what time it is, and I won’t be feeling extra tired like I do when I drink coffee.”

According to Majed Alnakhli:

Caffeine + L-theanine - “No jitters, solid energy throughout the day. No high intensity just delivers good focus and drive.”

Where to Buy Caffeine Pills?

Caffeine pills can be brought from several independent online suppliers. However, with so many offering different potency and strengths, it’s important to ensure that you source your caffeine pills from reliable suppliers.

To ensure you are sourcing the caffeine pills from an authentic supplier, you’ll want to ensure that the products are of premium quality, that they are lab tested and lab-verified for safety, and that they are ideally third-party tested. A reliable brand that sells the best caffeine pills is Pure Nootropics.

All of their products are lab tested and verified by third-party labs. They are a leading global supplier that has been producing supplements since 2013. Their range of products, especially the three presented, offer great benefits when it comes to improving cognitive performance, enhancing mental capacity, and reducing mental stress and fatigue.

It’s also advised that you take a look at the customer reviews and the feedback. This will help you get a clearer idea of how the product works and what to expect. You’ll be able to compare which products are best suited to you.

So, There You Have It, the Best Caffeine Pills on the Market

The list of energy-boosting, cognition-enhancing, and mood-boosting caffeine pills provides superior benefits. With nootropics growing in popularity, Pure Nootropics products provide products that contain active ingredients that provide stimulating effects.

Though the research on nootropics is still young, many studies and reviews show their potential for improving mental and physical performance. As caffeine pills are amongst the most powerful nootropics, it’s advised that they be taken with care.

If you’re looking for the best caffeine pill to help you in areas of cognitive performance or increasing energy and focus, use this review as a guide to help you narrow down which supplement is best for you.