Name: Transparent Labs Stim-Free
Brand: Transparent Labs
SKU: transparent-labs-stim-free

30-Second Review

Stim-Free by Transparent Labs is a caffeine-free pre-workout. Bulk without the stimulant. One scoop is 8g of citrulline malate, 4g of beta-alanine, 2.5g of betaine, 1.3g of taurine, and 1g of tyrosine, and there is no caffeine. The citrulline malate still works out to about 5.3g of actual citrulline.

You get the same 8g of citrulline malate, 4g of beta-alanine, and 2.5g of betaine as Bulk, with no caffeine. It is naturally sweetened, and the doses are written out instead of hidden in a blend. The tub is $49.99 for 30 servings, about $1.67 each. The limit is that 8g of citrulline malate is about 5.3g of actual citrulline, and 4g of beta-alanine still tingles.

Disclaimer: This is an independent editorial analysis. No brand paid for this score.

Stim-Free

Transparent Labs9.4

Caffeine-Free0mg caffeine

8.7

Rating Breakdown

Price & Value8.0

Ingredients & Blend9.2

Brand Reputation9.4

Review Scan8.0

Final Overall Score8.7

$1.67 / serving · 30 servings / container

Stim-Free

Transparent Labs9.4

Caffeine-Free0mg caffeine

Price & Value8.0

Ingredients & Blend9.2

Brand Reputation9.4

Review Scan8.0

8.7

$1.67 / serving · 30 servings / container

Pros

You get the same 8g of citrulline malate, 4g of beta-alanine, and 2.5g of betaine as Bulk, with no caffeine
It is naturally sweetened, and the doses are written out instead of hidden in a blend

Cons

8g of citrulline malate is about 5.3g of actual citrulline, and 4g of beta-alanine still tingles
There is no caffeine, so people use it for the pump and not for a wake-up

Label Snapshot

Caffeine0mg

Beta-Alanine4g

L-CitrullineNone

L-TheanineNone

CreatineNone

Flavors

Strawberry Lemonade, Orange Pineapple, Grape Limeade, Blue Raspberry, Raspberry Hibiscus, White Cherry, Peach Mango, Tropical Punch, Sour Watermelon

Where to buy

2 stores we checked on Oct 26, 2026, best price per serving first. Prices change often, so the price at checkout is the one that counts.

Best price per serving

Transparent Labs1.4K reviews at Transparent Labs

Available flavors

Strawberry Lemonade, Orange Pineapple, Grape Limeade, Blue Raspberry, Raspberry Hibiscus, White Cherry, Peach Mango, Tropical Punch, Sour Watermelon

transparentlabs.comOfficial Brand Store

Buy for $49.99$1.67 / serving

Amazon

Available flavors

Strawberry Lemonade, Blue Raspberry, Grape Limeade, Tropical Punch

amazon.com

Buy for $49.99$1.67 / serving

We may earn a commission when you buy through these links, at no extra cost to you. It never changes a score. How we make money

Tub price history

Lowest price we have written down

About the brand

The company behind Stim-Free

Brand name: Transparent Labs
Parent company: Nutra Holdings
Founded: 2016
Key people: John Williams
Headquarters: American Fork, Utah

Transparent Labs Stim-Free video reviews

From other creators on YouTube. We don't make these videos or pay for them.

7:48
Transparent Labs STIM FREE Pre-Workout Review: OBSESSEDFeastGood · Jul 11, 2023
15:44
YOU WILL NOT BEAT THIS! 👑 Transparent Labs Stim-Free Pre-Workout ReviewGarage Gym Homie · May 3, 2024

Transparent Labs Stim-Free Stats

How its label, price and reviews stack up against the 158 pre-workout tubs we rank.

Rankings

Top 3%

#4of 199

All pre-workouts

#1of 32

Caffeine-Free Pre-Workouts

Top 34%

#2of 6

Transparent Labs products

Caffeine-Free Pre-Workouts

All 32 Products

Supplekings Score

Great8.7

Tied for the highestAverage 7.6

Price & Value1.18.0
Ingredients & Blend1.79.2
Brand Reputation1.49.4
Review Scan0.28.0

Shopper Rating

4.7/5

1,448 reviews at Transparent Labs

Sold At

At a Glance

Type: Caffeine-free pre-workout
Caffeine: None
Stim level: Caffeine-free
Servings per tub: 30
Flavors: 9
Prices checked: Oct 26, 2026

Label Doses

Next to other pre-workout tubs. This one is the bright bar.

Caffeine

None

Citrulline MalateTied for the most

1gTypical 6g8g

Beta-AlanineMore than 86% of tubs

1.6gTypical 3.2g6.4g+

BetaineSame as most tubs

2.5g

Price Stats

Cheapest on the left. This one is the bright bar.

Per servingCheaper than 38% of tubs

$1.67

$0.67Typical $1.50$3.00+

Lowest price for 30 servings: $49.99 at 2 stores
Change since Oct 22, 2026: No change

Transparent Labs Stim-Free FAQ

How much caffeine is in Transparent Labs Stim-Free?

There's no caffeine in Transparent Labs Stim-Free. It ranks #1 of 32 caffeine-free pre-workouts.

What's on the Transparent Labs Stim-Free label?

The doses we track are 8g of citrulline malate (tied for the most of the 25 that list it), 4g of beta-alanine (more than 86% of the 107 that list it), and 2.5g of betaine (the same as most of the 25 that list it).

How much does Transparent Labs Stim-Free cost per serving?

The lowest price we found is $49.99 for 30 servings, or $1.67 per serving. That's cheaper than 38% of the 158 pre-workout tubs we rank, where the typical one costs $1.50.

Where can you buy Transparent Labs Stim-Free?

We checked 2 stores on Oct 26, 2026: Transparent Labs and Amazon. It comes in 9 flavors.

How do shoppers rate Transparent Labs Stim-Free?

Shoppers give Transparent Labs Stim-Free an average of 4.7 out of 5 across 1,448 reviews at Transparent Labs. Our Review Scan score for it is 8.0 out of 10.

Who makes Transparent Labs Stim-Free?

Transparent Labs makes Stim-Free. Its parent company is Nutra Holdings. The brand was founded in 2016 and is based in American Fork, Utah. We rank 6 Transparent Labs products, averaging 8.4 out of 10.