Skip to product information
All /Pump Pre-Workout

Pump Pre-Workout

Pump Pre-Workout

Clinically dosed, non-stim pre-workout formula to amplify blood flow and muscle pumps for hours on end without jitters.

No Artificial Sweeteners
No Artificial Coloring
No Artificial Preservatives
1 Flavor Available:
 

Flavor:

Frequency:

Free Shipping
View full details
Pump Pre-Workout

Pump Pre-Workout

Third-Party Testing

We believe trust is earned through transparency. That’s why we provide full access to our third-party test results, so you can feel confident in what you’re taking. View all third-party tests.

 

Transparent Labs Pump is a delicious stimulant-free pre-workout formula containing clinical doses of vasodilating and cell-volumizing nutrients, including L-citrulline, NO3-T® arginine nitrate, BetaPure™ betaine, Setria® reduced L-glutathione, BioFolate®, AstraGin™, and vitamin C.


Fuel your training with proven ergogenic ingredients that bolster nitric oxide production, hydrate muscle cells, and enhance blood flow for hours on end.


No junk, fillers, or nonsense — just premium, evidence-based, clean ingredients that deliver every time you hit the gym.

 
 

Orders in the US over $99 ship free.

Once your order has shipped out from our fulfillment center, you will receive a Shipping Confirmation email. If you selected a tracked shipping method, you will receive your tracking information, along with the necessary steps to track your order, within this email. Please note, orders are generally fulfilled same day or next business day.

Click here for the full shipping and delivery guide »

45 Day Satisfaction Guarantee

If you are not satisfied with your product, we will offer you a full refund or store credit for the value of the item within 45 days of delivery.

Click here for the full refund policy »

Why Use Pump Pre-Workout

This stimulant-free pre-workout formula rapidly boosts blood flow so you can achieve skin-tearing muscle pumps during training.

Ignite Muscle Pumps

High-dose L-citrulline and NO3-T® increase nitric oxide levels, significantly improving blood flow and muscle fullness.

Improve Strength & Stamina

Clinically dosed ergogenic ingredients enhance muscle strength, endurance, and power output.

No Crashing or Jitters

This formula contains no stimulants, so you can work out without feeling jittery or crashing afterward.

Natural & Stim-Free Formula

Naturally flavored, sweetened with stevia, and free from artificial ingredients, ideal for evening workouts or stimulant-sensitive individuals.

Key Ingredients

Our formulas are made with clean, natural ingredients, with clinically-validated dosages to support health and performance.

L-Citrulline Malate

8,000 mg
L-Citrulline is a well-known nitric oxide booster that enhances blood flow, reduces muscle fatigue, and boosts endurance.

NO3-T® Arginine Nitrate

2,500 mg
NO3-T® provides arginine-bonded nitrate, which acts as a nitrate donor and substrate for nitric oxide synthase.

BetaPure™ Betaine Anhydrous

2,500 mg
Betaine Anhydrous keeps muscle cells hydrated, supports energy production, and boosts muscle endurance, strength, and overall performance.

Setria® Reduced Glutathione

250 mg
L-Glutathione is the body’s primary endogenous antioxidant. Hence, it has ubiquitous roles in human physiology.

BioFolate®

400 mcg DFE
BioFolate® is a patented 5-methyltetrahydrofolate (MTHF), the bioactive form of vitamin B9 (folate).

Vitamin C

250 mg
Vitamin C is an essential vitamin and antioxidant that promotes the absorption of dietary nitrates and supports nitric oxide production.

L-Tyrosine

500 mg
L-Tyrosine is an amino acid that serves as a precursor to dopamine and norepinephrine.

Astragin™

50 mg
An adaptogenic complex that enhances nutrient absorption, increasing the bioavailability of amino acids and other ingredients to maximize formula effectiveness.

L-Citrulline Malate

8,000 mg

L-Citrulline is an amino acid that enhances physical endurance due to its role in the synthesis of nitric oxide (NO). [1]

When nitric oxide production increases, blood flow improves, allowing nutrients and oxygen to replenish muscle tissue more efficiently. This translates to greater muscle pumps and heightened energy levels.

Numerous studies have demonstrated the performance-enhancing effects of L-citrulline such enhancing strength, muscle power output, anaerobic and aerobic capacity. [2, 3, 4]

Additionally, studies indicate that L-Citrulline reduces muscle soreness and enhances immune responses during the post-exercise period, supporting recovery from physical training [5].

NO3-T® Arginine Nitrate

2,500 mg

NO3-T® provides arginine-bonded nitrate that serves a dual function as a nitrate donor and substrate for nitric oxide synthase. Ingested nitrate provides a complementary mechanism to form nitric oxide when the L-Arginine → L-Citrulline pathway is suppressed [6]. Thus, a balance of arginine and nitrate ensures stable, lasting nitric oxide production.

BetaPure™ Betaine Anhydrous

2,500 mg

Betaine, also known as trimethylglycine, plays a role in various physiological processes, primarily as an osmolyte (helping cells maintain fluid balance) and a methyl donor (assisting in biochemical reactions). Betaine supplementation has shown promise in improving muscle endurance and enhancing strength and power in trained individuals [7, 8, 9].

While the mechanisms are not fully understood, Betaine supplementation may promote athletic performance through regulating cellular hydration, supporting creatine biosynthesis and playing a role in ATP (energy) production. [10]

Setria® Reduced Glutathione

250 mg

Setria® is a reduced form of L-glutathione that works to augment nitric oxide production and attenuate oxidative stress, thereby encouraging healthy blood flow and vascular function [10].

BioFolate®

400 mcg DFE

Folate has been shown to improve the coupling of endothelial nitric oxide synthase (eNOS), so more arginine gets converted to nitric oxide [11]. 

As such, BioFolate® augments the vasodilating effects of L-citrulline and arginine nitrate.

Vitamin C

250 mg

As a crucial water-soluble antioxidant, vitamin C plays many important roles throughout the immune, nervous, and cardiovascular systems. Recent studies have also shown that the antioxidant and acid-forming properties of vitamin C promote the gastrointestinal absorption of nitrates and conversion of nitrite to nitric oxide, making it synergistic with NO3-T® [12, 13].

L-Tyrosine

500 mg

Increasing tyrosine uptake may positively influence neurotransmitter-related psychological functioning. Research shows that supplementing with L-tyrosine can significantly enhance cognitive performance, especially under acutely stressful situations (such as intense training)  [14]. 

L-Tyrosine has also been shown to improve “cognitive flexibility,” meaning it can help you adapt to dynamic cognitive demands without letting extraneous thoughts undermine your focus [15].

Astragin™

50 mg

Astragin™ is a water-soluble extract of Panax notoginseng and Astragalus membranaceus, two promising adaptogenic herbs with longstanding medicinal use [16]. The constituents in these plants are suggested to selectively increase the absorption of molecules, such as amino acids, by enhancing intestinal permeability [17]. 

In other words, Astragin™ helps your body absorb the other ingredients in this formula, making the overall formula more effective.

/
  • Pump Pre-Workout gave me an extra 30 minutes of energy!
  • Love the clean ingredients. I can definitely feel the difference in the gym.
  • It is actually stim free, and the pump I get is absolutely real.
  • 5 stars: 107 (73%)
  • 4 stars: 14 (10%)
  • 3 stars: 17 (12%)
  • 2 stars: 4 (3%)
  • 1 star: 5 (3%)
G
Gene W.
Blue Raspberry
Pump Blue Raspberry taste amazing and mixes up

Pump Blue Raspberry taste amazing and mixes up good and the supplement does give you a good pump Transparent labs have really great products that work and alien with your goals
Gene W

J
Jared

Taste is good and doesnt make you jittery.

J
James

Good solid product. No side effects

T
Torin

Big fan

D
Douglas

A new pre workout for me

A
Aaron

Pump is great, about the same as competitors. Flavor is terrible. Has the strong citric acid flavor.

T
Tyler H.
Blue Raspberry
Love the clean ingredients for this pump

Love the clean ingredients for this pump. I can definitely feel the difference in the gym too.

A
Anonymous
Blue Raspberry
Great product

Great product. I was looking for something without creatine mono and this is it. Fantastic pumps.

P
Paul
Blue Raspberry
PUMP PRE-WORKOUT!

My workouts are centered around calisthenics combined with weight lifting. Pretty intense workouts. Pump Pre-Workout gave me an extra 30 minutes of energy! I usually run my tank until it's empty! Pump helped substantially!

M
Moose
Sold out!!! Over it!

Ok sold out for a few weeks a month ... but over a year is not sold out..
This is so frustrating

M
Marc B.
Coming back soon?

Whether placebo or actual, this preworkout has had the best results of the TL "pre" lineup for me, exception being i havent tried Bulk Black. Bring it back with an "Unflavored" option soon please. Alternatively any "pre" option unflavored would make me just as happy.

D
Danny
Bring It Back

I really like this pre workout just wish it was back in cherry or different flavors

T
Tawni C.
Pump

Pleaseeeeeeeee bring it back soon :)

J
Joe
Product good. Flavor bad

Energy to the end of the workout!
I only wish another flavor was offered. Blue raspberry = yuck

T
Tawni C.
Sold out

It’s sold out for a reason, Because it works really well! Please bring it back ASAP. I need it 😊

J
Jonah
Stevia IS NOT an artifical sweetner

@dal Stevia sweetener is derived from the stevia plant/leaves.

Yes, it's generally refined, but it still comes from a natural resource

o
omar a.
great taste

great taste, clean ingredients. unsure about the ascorbic acid .. kind of unnecessary.
i like the NO3

D
Dal S.
Contains artificial sweetener stevia.

Ad says no artificial sweeteners

A
Alivia N.

Easy on the stomach!

A
Anonymous
Peronies

It has really helped with my peronies disease anyone that suffers from this disease should consider this

s
samuel B.

Good pump

J
Jordan E.
Great Stim Free Pre-Workout

It's not loaded with fillers and gives you a great pump + good focus. Highly recommend this to others.

M
Mike S.
So So

Used 3 times and only had one good pump that was average. Tho I’m on a diet and low carb. Product is really fluffy. Doesn’t seem right

d
daniela l.

Lovely

J
Jeffery B.
My favorite stim-free pre work out!

I feel the best pump from this pre-workout

A
Andy B.
Product was ok

Have been using it for a month and haven’t notice any difference. Taste good and lets me keep some energy level during my hour long strength training.

S
Stefan K.
Great

Great!

G
Gustavo M.

I have tried lot of products over the years and I finally found the right one that works for my body have no issues with this brand and I feel great

T
Tawni C.
Love it

Great pre-workout, definitely gives you a pump! I like to use this for later in the afternoon workouts so you don’t have the caffeine! Love the taste, I love Transparent Labs. I love the clean products , thank you.!

J
John H.
late day pre workout

The Bulk is great if you can take at the beginning of your day. Pump is the answer if you workout after work, and need to sleep a few hours later! I use Pump during the week after work, and it definitely improved my progress! The Pump mixes well, tastes great and has a smooth boost without jitters!

D
Daniel C.

It’s meah

M
Michael S.
Solid product; better customer service

The post office lost my package, so I called Transparent Lab’s customer support to see if they could help me track it down. They ended up sending me a new package with no hassle.

How To Use

1

Step 1 - Add Powder

Beginners: To assess your tolerance*, add 1/2 scoop (included in the container) of PUMP Pre-Workout into a shaker cup with 6-8 ounces of cold water or your preferred beverage. Experienced Users: Add 1 level scoop (included in the container) of PUMP Pre-Workout into a shaker cup with 10-12 ounces of cold water or your preferred beverage. *If the effects feel subtle, increase to a full scoop before the next workout.
 
2

Step 2 - Mix Thoroughly

Place the lid securely on your shaker cup and shake vigorously until the powder fully dissolves and the mix is smooth.
 
3

Step 3 - Consume

For best results, consume PUMP Pre-Workout 20-30 minutes before your workout (ideally on an empty stomach or at least 90 minutes after a meal).
 
4

Step 4 - Use on Training Days

Take PUMP Pre-Workout before workouts on days you train.

Frequently Asked Questions

Choosing between stim-free and stim-based pre-workout depends on your personal needs and tolerance for stimulants, notably caffeine. Many people admittedly love the jolt of wakefulness and increased vigilance that caffeine provides and are more likely to perform well in the gym because of that.

The psychotropic rush you feel after taking a stim-based pre-workout will not be as apparent when taking a non-stim pre-workout. But if you work out later in the day, a stimulant-free pre-workout may be the better option so it doesn't interfere with your sleep.

 

Yes, it's safe to take our non-stim pre-workout daily as long as you adhere to the recommended dosages. Our product is formulated with safe levels of each ingredient and is free from harmful additives, ensuring consistent performance benefits.

 

No, this formula contains 100% non-stimulant ingredients and won't cause restlessness.

 

This non-stim pre-workout increases muscle pumps and athletic performance by improving blood flow. It's ideal for active individuals who lift weights.

Is a stim-free pre-workout better than a stim-based pre-workout?

Choosing between stim-free and stim-based pre-workout depends on your personal needs and tolerance for stimulants, notably caffeine. Many people admittedly love the jolt of wakefulness and increased vigilance that caffeine provides and are more likely to perform well in the gym because of that.

The psychotropic rush you feel after taking a stim-based pre-workout will not be as apparent when taking a non-stim pre-workout. But if you work out later in the day, a stimulant-free pre-workout may be the better option so it doesn't interfere with your sleep.

Can you take a stim-free pre-workout every day?

Yes, it's safe to take our non-stim pre-workout daily as long as you adhere to the recommended dosages. Our product is formulated with safe levels of each ingredient and is free from harmful additives, ensuring consistent performance benefits.

Will a stim-free pre-workout keep me up at night?

No, this formula contains 100% non-stimulant ingredients and won't cause restlessness.

What is PUMP pre-workout used for?

This non-stim pre-workout increases muscle pumps and athletic performance by improving blood flow. It's ideal for active individuals who lift weights.