Bestseller

4.35/5.0 1471 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

Customer Reviews

Based on 1471 reviews
70%
(1034)
12%
(176)
6%
(94)
5%
(72)
6%
(95)
G
George Benes
Feeling itchy

The overall effect is decent, but nowhere near the stim-free BOOST. I get very itchy with this product. Unfortunately the BOOST has been discontinued. I wish they could bring it back. It was my daily pre workout for many years.

S
Steven
BEST Pump

Was my first pre workout without caffeine and I was worried I wouldn't have energy for the workout. Stim-Free held up its side by providing me mental focus and a huge pump that I have not experienced with other pre workouts.

H
Hal Kerkhoff
Great tasting and controlled pump

Started using this because it was caffeine free. Product tastes good and has a nice controlled pump. Been using it for a week and really like it so far.

J
John S.
Great for HIIT

I go to a HIIT class 3 days a will in the evening and I wanted a pre workout without caffeine because I was worried about my heart racing in didn’t want it to keep me up. I take this with creatine HCL and agamatine and it has really helped me progress. I’ve lost over 70lbs in the last year and at 38 my conditioning is the best itself ever been! I follow this up with the post workout and I’m never sore.

K
Kyle
Excellent

When you workout multiple times a day and don't want to ingest massive amounts of caffeine this is a great product to use. Still gives you a pump without the stim has the same great taste.

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 for Purity and Potency: Like all Transparent Labs products, every batch of Stim-Free Pre-Workout is third-party tested to ensure you're getting everything on the label and nothing that doesn't belong in the product.

No Artificial Sweeteners

No Artificial Coloring

Gluten-Free and Non-GMO

Customer Reviews

Based on 1471 reviews
70%
(1034)
12%
(176)
6%
(94)
5%
(72)
6%
(95)
G
George Benes
Feeling itchy

The overall effect is decent, but nowhere near the stim-free BOOST. I get very itchy with this product. Unfortunately the BOOST has been discontinued. I wish they could bring it back. It was my daily pre workout for many years.

S
Steven
BEST Pump

Was my first pre workout without caffeine and I was worried I wouldn't have energy for the workout. Stim-Free held up its side by providing me mental focus and a huge pump that I have not experienced with other pre workouts.

H
Hal Kerkhoff
Great tasting and controlled pump

Started using this because it was caffeine free. Product tastes good and has a nice controlled pump. Been using it for a week and really like it so far.

J
John S.
Great for HIIT

I go to a HIIT class 3 days a will in the evening and I wanted a pre workout without caffeine because I was worried about my heart racing in didn’t want it to keep me up. I take this with creatine HCL and agamatine and it has really helped me progress. I’ve lost over 70lbs in the last year and at 38 my conditioning is the best itself ever been! I follow this up with the post workout and I’m never sore.

K
Kyle
Excellent

When you workout multiple times a day and don't want to ingest massive amounts of caffeine this is a great product to use. Still gives you a pump without the stim has the same great taste.

Clinically Dosed, All Natural.

Science-Backed Formulas, Clinically Effective Dosages.

No Artificial Sweeteners, Fillers, or Dyes.

3rd-Party Lab Tested.

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