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Full As F*ck Nitric Oxide Booster: Maui Twist


When you’re in the gym, the pump is EVERYTHING! When you’re training brutally hard, there’s no greater feeling than your muscles pumped to the max!





Full As F*ck Nitric Oxide Booster: Maui Twist - 5% Nutrition


There’s nothing more satisfying than getting an extreme pump!

Your working muscles feel like they’re about to explode, not to mention looking absolutely huge. There’s no doubt that a great pump can transform your physique right before your eyes. A pump like this forces your muscles to look FULL AS F*CK.

Yet there’s more than just a visual benefit to getting a great pump. That’s because the increased blood flow carries critical oxygen and nutrients to your working muscles. This improves endurance so you can get your best workout every time.

Of course, most bodybuilders want the most extreme pump they can get. They’ll search the market for the best pump-enhancing supplement they can find. If you're looking for the ultimate pump, FULL AS F*CK is your desired pump pre-workout.


FULL AS F*CK gives you a fully disclosed formula. There’s no prop blends here. Not to mention, it’s seriously dosed. Underdosing? That’s for companies that can’t compare to 5% Nutrition! This powerful formula contains over-dosed nitric oxide boosters and cell volumizers. It’s designed to jack up nitric oxide production and pull water into your muscles.

Not to mention, FULL AS F*CK is now better than ever! You know Rich’s unrelenting pursuit of perfection? Well, 5% Nutrition is the same way. FULL AS F*CK was always great - but now it’s even better!

Check out the ingredients, and get ready for the best pumps of your life! 

L-Citrulline - 5 Grams
We’re talking about pure L-Citrulline. Many of those other pump formulas combine Citrulline with Malic Acid. Plus, they’re underdosing it in the first place. It’s important to get the full dose of this powerful pump ingredient. You see, Citrulline converts to Arginine in the liver. From there, it will promote longer-lasting, more intense pumps than Arginine itself. FULL AS F*CK contains 100% pure L-Citrulline in an effective 5-gram dose.(1) 

L-Taurine - 2 Grams
You will find Taurine in quite a few supplements. It’s almost always in pre-workouts and energy drinks. Taurine is a conditionally essential amino acid. It’s found primarily in the brain, heart, and skeletal muscles of the body. It decreases the nerve impulses in the brain that increase blood pressure. What does this mean for the pump? It lowers resistance to blood flow. Better blood flow means better pumps. Also, Taurine increases muscle cell volume by pulling water into the muscles.(2) 

GlycerSize™ (65% Glycerol Powder) – 2 Grams
Like Taurine, GlycerSize Glycerol increases muscle cell volume. It does this by pulling water into the muscles. This means extreme muscle fullness or water-based pumps. Also, GlycerSize improves hydration. This, in turn, increases endurance.(3)

Nitrosigine™ - 500 mg
This is a patented complex that’s made up of bonded arginine and silicon. This ingredient has a couple of impressive benefits. First, it extends the pump for 6 hours. Now, that's a long-lasting pump! In addition, it works within 30 minutes of taking the very first dose.(4)

Dan-Shen Extract - 100 mg
This is also known as Red Sage. It’s a powerful herbal extract that has been used in Chinese medicine for thousands of years. Dan Shen has also been shown to dramatically increase blood flow. Of course, this means a better pump and better nutrient delivery.(5)

BioPerine® Black Pepper Extract - 5 mg
BioPerine®Black Pepper Extract improves the absorption of the nutrients it is combined with. Improved absorption means improved benefits.(6)

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Supplement Facts

  • Maui Twist
serving size - 1 scoop: 14.5 g servings per container: 15
per serving % daily serving
Vitamin C (as Ascorbic Acid, Calcium Ascorbate) 250 mg 278%
Niacin (as Vitamin B3) 30 mg NE 188%
Phosphorus (as Dipotassium Phosphate) 30 mg 2%
Magnesium (as Magnesium Citrate, Magnesium Glycerophosphate) 15 mg 4%
Sodium (as Sodium Glycerophosphate) 1 mg <1%
Potassium (as Dipotassium Phosphate, Potassium Citrate, Inositol-Stabilized Arginine Silicate, Potassium Glycerophosphate) 140 mg 3%
L-Citrulline 5,000 mg *
L-Taurine 2,000 mg *
GlycerSize™ (65% Glycerol Powder) 2,000 mg *
Nitrosigine® (Inositol-Stabilized Arginine Silicate) 500 mg *
Dan Shen (Salvia miltiorrhiza)(root) Extract 100 mg *
BioPerine® [Black Pepper (Piper nigrum)(fruit) Extract] 5 mg *
*Daily Value not established
Other Ingredients: Citric Acid, Silicon Dioxide, Natural & Artificial Flavors, Glucose Polymers, Malic Acide, Sucralose, Acesulfame K, FD&C Yellow No. 5

Products manufactured with Good Manufacturing Practice facilities in the United States

We use only the highest quality ingredients in efficaciously dosed formulas

We independently test each lot before releasing products to our customers


Frequently Asked Questions

  • What are the suggested directions for using Full As F*ck®?

    Mix 1 scoop with 8-12oz. cold water and consume 30 minutes before your workout. You can also use Full As F*ck® on off days by taking one serving in the morning on an empty stomach.

  • What makes Full As F*ck® different from other pump formulas on the market?

    Full As F*ck® is an advanced combination of fully disclosed, effectively dosed ingredients that work synergistically to create both nitric oxide and water-based pumps. Many pump products only stimulate nitric oxide production which is just one part of achieving mind-blowing pumps. For the most extreme pumps, you want both nitric oxide and water-based pumps.

  • Can I stack Full As F*ck® with the 5% pre-workout of my choice?

    Yes, you can stack it with any of our pre-workouts. Ideally, you will want to take Full As F*ck® about 30 minutes before your pre-workout. This approach will keep the pumps going right through and beyond your training session. Additionally, you can use Full As F*ck® as part of a stim-free pre-workout stack that should also include Crea-TEN® for the ultimate in both water-based and nitric oxide-based pumps.

  • Isn’t the pump just cosmetic?

    No. While the pump does produce a powerful cosmetic effect, it also increases nutrient and oxygen delivery to the working muscles as well as speeding the removal of waste products, reducing fatigue, creating greater muscular efficiency and improved recovery.

  • Who can use Full As F*ck®?

    Anyone that is lifting weights or training intensely. While there are specific pump-style workouts, most training styles support a pump if you are not resting 3 minutes or more between sets. You can also use Full As F*ck® on off days to keep that pumped look and feeling going.

  • With that in mind, what is the optimal training style for people taking Full As F*ck®?

    While Full As F*ck® will work with any resistance-based exercise training style, it is ideal for intense workouts using medium to high volume and 70-85% 1RM for reps in the 8-12 range that include beyond failure techniques. It is also the perfect choice for lighter, pump style workouts such as the famous Rich Piana “feeder” style workouts.

  • Do I need to cycle Full As F*ck®?

    Full As F*ck® does not need to be cycled. While you can use Full As F*ck® on off days, you will experience the best results if you use it before your workout.

  • What 5% Nutrition® products can I stack with Full As F*ck®?

    Full As F*ck® may be stacked with Crea-TEN® for a synergistic cell volume effect as well as with any 5% Nutrition® pre-workout for the ultimate training experience. Additionally, Full As F*ck® should be taken with the foundational products, such as All Day You May®, Shred Time, Core - L-Citrulline 3000, Freak Show®, any of our pre-workouts, Bigger By The Day®, Crea-TEN®, and Real Carbs® (or Real Carbs + Protein® and Real Carbs Rice).

  • What is the difference between Kill It®, Kill It Reloaded, 5150® and Full As F*ck®?

    Kill It® is an effective pre-workout with less caffeine making it ideal for those users looking for a lower stimulant experience as well as users that are using a pre-workout for the first time. Kill It Reloaded is a complete pre-workout with a higher caffeine content, making it ideal for users with more experience using a pre-workout. 5150® is a balls-to-the-wall high stim pre-workout that is designed for hardcore users seeking the ultimate stimulant experience. Full As F*ck® is our mega dosed, stim-free pump formula that is ideal for users that do not want stims as well as those users that are cycling pre-workouts and want a break from the stim-based products.

  • Does Full As F*ck® contain stimulants?

    No, Full As F*ck® is stim free.


GlycerSize™ is the registered trademark of Pinnacle Ingredients Pty Ltd (Australia).

BioPerine® is a patented product & registered trademark of Sabinsa Corporation.

Nitrosigine® is the registered trademark of Nutrition 21, LLC. Nitrosigine® is patent protected.

  2. Hoffmann, E.K., I.H. Lambert, and S.F. Pedersen, Physiology of cell volume regulation in vertebrates. Physiol Rev, 2009. 89(1): p. 193-277.
  3. National Center for Biotechnology Information (2021). PubChem Compound Summary for CID 753, Glycerol. Retrieved August 17, 2021 from
  5. Zhou, L., Zuo, Z., & Chow, M. S. (2005, December). Danshen: An overview of its chemistry, pharmacology, pharmacokinetics, and clinical use. Retrieved from

Product Warnings

Not intended for persons under the age of 18. Do not use if pregnant or nursing. Consult a health care professional prior to consumption if you have any pre-existing medical conditions including but not limited to: diabetes, high or low blood pressure, heart, liver or kidney disease, cardiac arrhythmia, stroke or are taking any prescription medication.
Store in a cool, dry place away from sunlight and with lid tightly secured.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
 WARNING: Consuming this product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to