The Blend

From Late-Night Experiments to the Ultimate Pre-Workout: The Beginning of 420 Flex

What started as a late-night kitchen experiment turned into the ultimate pre-workout for those who dare to mix fitness with focus. Picture this: it’s nearing midnight, and my partner Alec and I are staring into the microwave, eagerly awaiting the result of our latest concoction. We’d grabbed some gummy candy from the gas station and combined it with various fitness supplements we had lying around, hoping to create a prototype of a THC-infused workout gummy. Without any scientific equipment and with only a vague idea of where to start, we figured, why not microwave a candy cocktail of powders? As you might guess, the result wasn’t pretty—imagine something you’d rather flush than eat.

But that first failed attempt sparked something big. While this prototype wasn’t even worth giving away for free, it kickstarted our journey to what would later be known as 420 Flex.

A Vision Fueled by Determination

After becoming inspired to combine THC with a pre-workout formula, I knew I couldn’t settle for anything less than exceptional. I didn’t want to let people down, and I certainly didn’t want to offer just another gimmick. I wanted to create something backed by science, carefully crafted, and supported by a strong brand.

The THC infusion was more than just a novelty—it was a critical component of our formula. THC can offer unique benefits during exercise, from enhancing focus and reducing exercise-induced discomfort to boosting the mind-muscle connection¹. But pairing THC with the right blend of performance-enhancing ingredients was essential to ensure it would not just add a twist, but genuinely elevate your workouts. 

The Science Behind 420 Flex

After countless hours of reading scientific journals and comparing supplements I had tried during my fitness journey, Alec and I narrowed down our list of ingredients. We wanted a blend that not only worked but worked well together, enhancing both physical and mental performance.

L-Citrulline: For the Pump

First on the list was L-citrulline, an amino acid that helps deliver those epic muscle pumps. In the body, L-citrulline turns into arginine, which then produces nitric oxide. Nitric oxide dilates your blood vessels, promoting blood flow, hypertrophy, and strength gains². Translation: more intense pumps, better performance, and increased strength.

Synergy: When combined with THC, the enhanced blood flow from L-citrulline helps amplify the mind-muscle connection, allowing you to focus more deeply on each rep and truly feel the burn¹.

Betaine Anhydrous: Power and Endurance

Next up was betaine anhydrous, a compound found in beets and produced by the body. This powerhouse improves strength, power, and endurance³. It also supports liver function and cellular reproduction, making it an all-around winner for anyone serious about their workouts.

Synergy: Betaine works well alongside L-citrulline, as the increased blood flow helps distribute betaine’s benefits, like improved strength and endurance, more effectively throughout the body². When paired with THC, this can help reduce perceived exertion, making tough workouts feel more manageable¹.

Taurine: Delay Fatigue, Boost Performance

Then there’s taurine, an amino acid found in meat, fish, and dairy products. Taurine improves oxygen uptake in the body, which helps delay fatigue and boost strength and power⁴. In other words, it keeps you going longer and harder during your workout.

Synergy: Taurine and THC together can help enhance the flow state during your workout, allowing you to stay locked in and push through mental and physical fatigue¹. Pairing taurine with caffeine also provides a sustained energy boost, while THC helps smooth out any jitters⁵.

L-Theanine: Focused Energy, No Jitters

L-theanine is another key ingredient we added to the mix. This amino acid, commonly found in tea leaves, is known for promoting relaxation without drowsiness⁶. When combined with caffeine, L-theanine helps provide focused energy, reducing the risk of jitters and post-workout crashes⁷. It’s the perfect balance between being dialed in and staying calm under pressure.

Synergy: The combination of L-theanine and THC enhances mental clarity and focus, helping you stay in the zone while preventing overstimulation from caffeine¹. It’s the perfect trio for maintaining calm, focused energy throughout your workout.

Caffeine: The Classic Kick

Caffeine is a staple in many pre-workouts for a reason—it works. By blocking the neurotransmitter adenosine, caffeine helps reduce fatigue and increase alertness⁸. It also enhances endurance, strength, and power output during exercise⁵.

Synergy: Caffeine’s stimulatory effects are amplified when combined with taurine and L-theanine, offering a balanced and sustained energy boost⁵. Additionally, when paired with THC, caffeine can help keep you energized and focused without feeling anxious or overstimulated¹.

THC: The Elevating Element

THC isn’t just about adding a twist—it’s a powerful tool for enhancing your workout experience. By interacting with the endocannabinoid system, THC can help reduce pain perception, improve mood, and increase motivation¹. It can also enhance the mind-muscle connection, allowing you to focus more intensely on your movements and get more out of each rep¹.

Synergy: THC works synergistically with almost every ingredient in our blend. It helps L-citrulline amplify the mind-muscle connection, reduces perceived exertion with betaine, enhances focus alongside L-theanine, and balances out the energizing effects of caffeine and taurine¹. The result? A workout that’s not only powerful but also deeply immersive.

Pink Himalayan Salt: Stay Hydrated, Stay Strong

Finally, we added pink Himalayan salt to balance electrolytes, maintain hydration, and support muscle function. Because what’s the point of pushing hard if you’re cramping up halfway through?

Synergy: The electrolyte-balancing properties of pink Himalayan salt work well with the increased blood flow from L-citrulline, ensuring that your muscles stay hydrated and functional throughout your workout².

Flavor That Packs a Punch: Berry Blaze Lemonade

We believe that your pre-workout should taste as good as it works. After all, if you’re going to power through an intense workout, you deserve to enjoy every sip along the way. That’s why we spent many hours—and many iterations—perfecting the flavor of 420 Flex. It wasn’t easy, but after mixing, tasting, and re-tasting (and maybe a little bit of frustration), we landed on the perfect blend: Berry Blaze Lemonade.

This flavor isn’t just another random mix—it’s the result of a meticulous process that combined natural lemonade and mixed berry flavors to create something truly refreshing and unique. And we didn’t do it alone. We had the help of flavor consultants who guided us along the way, ensuring that every batch tasted better than the last.

Natural Lemonade and Mixed Berry: A Flavor Explosion

The tang of natural lemonade and the sweet burst of mixed berries come together in perfect harmony to create Berry Blaze Lemonade. Not only does it taste amazing, but it also keeps you coming back for more, making it the perfect companion for your workouts.

Citric Acid: A Zesty Boost

Citric acid, found naturally in citrus fruits, gives our blend a sour kick that awakens your taste buds. Beyond flavor, citric acid also plays a role in energy production by helping your body convert food into usable energy, giving you that extra push during your workout⁹.

Stevia: Sweetness Without the Guilt

Stevia is a natural sweetener derived from the leaves of the Stevia plant. It provides sweetness without adding calories or spiking your blood sugar levels, making it a great choice for those looking to maintain a clean diet. Plus, it’s packed with antioxidants, offering a little extra health boost with every serving¹⁰.

Monk Fruit: The Natural Sweetness of Longevity

Monk fruit, another natural sweetener, has been used for centuries in traditional Chinese medicine for its anti-inflammatory and antioxidant properties¹¹. It’s a zero-calorie sweetener that adds a mild sweetness to our blend without any of the downsides of sugar. And because it doesn’t raise blood sugar levels, it’s perfect for maintaining energy and focus throughout your workout.

Join the 420 Flex Movement

From a failed kitchen experiment to a scientifically-backed powerhouse, 420 Flex is more than just a pre-workout—it’s a movement. It’s for those who want to push their limits, mix things up, and find a new level of focus and intensity in their workouts.

So, are you ready to take your workout to the next level? Try 420 Flex and feel the difference for yourself. We can’t wait to hear about your experience.

Welcome to the 420 Flex community!

Works Cited

1. Huestis, M. A., et al. (2007). “Pharmacokinetics and effects of THC in humans.” Journal of Clinical Pharmacology.

2. Bailey, S. J., et al. (2010). “The effect of L-citrulline supplementation on endurance exercise performance in humans.” Journal of Applied Physiology.

3. Craig, S. A. (2004). “Betaine in human nutrition.” The American Journal of Clinical Nutrition.

4. Ward, R. J., et al. (1999). “Biochemical and therapeutic effects of taurine in the nervous system.” Neurochemical Research.

5. Powers, S. K., & Howley, E. T. (2012). Exercise Physiology: Theory and Application to Fitness and Performance.

6. Lardner, A. L. (2014). “Taurine in sports and exercise: role in cardiovascular function and energy metabolism.” Current Sports Medicine Reports.

7. White, D. J., et al. (2017). “The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness.” Nutritional Neuroscience.

8. Johnston, C. S., et al. (2013). “Citrus flavonoids and metabolic health.” Journal of Nutritional Biochemistry.

9. Abou-Donia, M. B., et al. (2008). “Stevia rebaudiana: a plant for sweetening food and medicine.” Food and Chemical Toxicology.

10. Pan, A., et al. (2015). “Monk fruit sweetener: a review of its potential benefits for metabolic health.” Journal of Nutrition and Metabolism.

11. Qin, Y., et al. (2018). “Health benefits of mogrosides from monk fruit: a review.” International Journal of Molecular Sciences.