Bestseller

4.67/5.0 1355 Reviews

STIM-FREE

NON CAFFEINATED PERFORMANCE FORMULA

Transparent Labs Stim-Free Pre-Workout is for gym-goers and active individuals who exercise later in the afternoon/evening and those who are sensitive to stimulants like caffeine. Alternatively, you ... View Ingredient Breakdown

No Artificial Sweeteners

No Artificial Coloring

Gluten-Free and Non-GMO

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Stim-Free Pre Workout (100% Caffeine Free)

10% off

Customer Reviews

Based on 1355 reviews
78%
(1056)
13%
(179)
7%
(95)
1%
(17)
1%
(8)
R
RKHJ
Highly recommend

Best product I’ve used in years. With this product, change in diet, I was able to lose 30 pounds, gain muscle mass and strength in 4 months and am in the best shape ever…at 53 years old.

F
Faith Taffe
Works!

I feel the burst of energy within 20-30 minutes of taking. Tingles but does not give jitters. I see results in my pumps. It is sweet; I don’t like the taste of stevia/don’t like stevia. The powder does get in your nose when using. Helps cover taste of greens.

B
Bethany Walker
5 Stars on Performance

I think this is a great pre workout performance-wise. Occassional tingling if drunk fast, not so much when sipped on over 15-20 minutes. Would give flavor 4 stars just because I prefer a more tart flavor. I've tried the strawberry lemonade and blue raspberry flavors so far.

A
Adam Forman
Great stuff

I have used different pre-workouts over the years. I have used BULK Black by TL and it was fantastic. The storm free version is just as good. It allows me to have a great pump and awesome workout.

S
Stephen Dule
Effective and Delicious

Returning buyer here. I don't like caffeine after 12PM, so this does the trick for afternoon workouts (plus I like to get my caffeine from coffee anyways.)
Personally, this formula has been effective for my strength workouts, allowing for faster recovery time and less fatigue. I can feel it kick in after 20-30 minutes, and it gives me that extra boost for the whole workout.
Not to mention, the Blue Razz and Strawberry Lemonaid are excellent flavors.

Bestseller

Transparent Labs Stim-Free Pre-Workout is for gym-goers and active individuals who exercise later in the afternoon/evening and those who are sensitive to stimulants like caffeine. Alternatively, you might be taking a "stim break" and looking to cut back on caffeine. In either case, this non-stimulant pre-workout formula has you covered with an evidence-based lineup of clinically dosed ingredients, coming in at a whopping 17 grams per serving!
 

Combine that with fully transparent labeling, great flavor, and absolutely no artificial color/food dyes, artificial sweeteners, or artificial flavoring, and it's no wonder Stim-Free Pre-Workout has become a fan favorite.

 

Key Features

  • Stimulant-Free Pre-Workout Formula Backed by Science: Ideal for those sensitive to caffeine and nighttime gym-goers, Transparent Labs Stim-Free Pre-Workout is formulated with clinically effective dosages of ergogenic ingredients to enhance your athletic performance without stimulants.

     

  • Enhances Strength, Stamina, and Muscle Pumps: With an unmatched blend of clinically dosed nitric oxide boosters, Stim-Free Pre-Workout bolsters muscle strength, endurance, and blood flow starting from the very first scoop.
     
  • Promotes Clean, Lasting Focus, Drive, and Energy: Get dialed in for every workout with evidence-based nootropics like taurine, L-tyrosine, and huperzine-A. Since this is a stimulant-free formula, it won't give you jitters or cause a post-workout crash.
     
  • Naturally Flavored and Sweetened with Stevia: Most non-stim pre-workouts are loaded with artificial colors, sweeteners, and flavors. We know you care about what you put in your body, so Stim-Free Pre-Workout contains only natural flavoring and stevia instead of the hidden junk you find in other pre-workout supplements.
     
  • Third-Party Tested and Certified for Quality: As part of our commitment to industry-leading transparency and quality, every batch of this product is tested by a third-party lab for purity and potency. You can find all of our test results in the footer of our website. This product is also certified by Informed Choice to meet the highest standards for athletes and consumers.

No Artificial Sweeteners

No Artificial Coloring

Gluten-Free and Non-GMO

Customer Reviews

Based on 1355 reviews
78%
(1056)
13%
(179)
7%
(95)
1%
(17)
1%
(8)
R
RKHJ
Highly recommend

Best product I’ve used in years. With this product, change in diet, I was able to lose 30 pounds, gain muscle mass and strength in 4 months and am in the best shape ever…at 53 years old.

F
Faith Taffe
Works!

I feel the burst of energy within 20-30 minutes of taking. Tingles but does not give jitters. I see results in my pumps. It is sweet; I don’t like the taste of stevia/don’t like stevia. The powder does get in your nose when using. Helps cover taste of greens.

B
Bethany Walker
5 Stars on Performance

I think this is a great pre workout performance-wise. Occassional tingling if drunk fast, not so much when sipped on over 15-20 minutes. Would give flavor 4 stars just because I prefer a more tart flavor. I've tried the strawberry lemonade and blue raspberry flavors so far.

A
Adam Forman
Great stuff

I have used different pre-workouts over the years. I have used BULK Black by TL and it was fantastic. The storm free version is just as good. It allows me to have a great pump and awesome workout.

S
Stephen Dule
Effective and Delicious

Returning buyer here. I don't like caffeine after 12PM, so this does the trick for afternoon workouts (plus I like to get my caffeine from coffee anyways.)
Personally, this formula has been effective for my strength workouts, allowing for faster recovery time and less fatigue. I can feel it kick in after 20-30 minutes, and it gives me that extra boost for the whole workout.
Not to mention, the Blue Razz and Strawberry Lemonaid are excellent flavors.

Clinically Dosed, All Natural.

Science-Backed Formulas, Clinically Effective Dosages.

No Artificial Sweeteners, Fillers, or Dyes.

3rd-Party Lab Tested.

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