Name: Transparent Labs Lean
Brand: Transparent Labs
SKU: transparent-labs-lean

30-Second Review

Lean by Transparent Labs is a medium-stim pre-workout. The lighter cutting tub, not a second Bulk. One scoop is 180mg of PurCaf, 180mg of L-theanine, 6g of citrulline malate, 2g of beta-alanine, 1.5g of betaine, and 1g of acetyl-L-carnitine. PurCaf is about 90% caffeine, so the actual caffeine is closer to 162mg.

180mg of caffeine with a matching 180mg of L-theanine is an easy daily dose. 1g of acetyl-L-carnitine is actually written on the label. The tub is $49.99 for 30 servings, about $1.67 each. The limit is that 6g of citrulline malate and 2g of beta-alanine are both lighter than the doses in Bulk.

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

Lean

Transparent Labs9.4

Medium-Stim180mg caffeine

8.0

Rating Breakdown

Price & Value6.4

Ingredients & Blend7.6

Brand Reputation9.4

Review Scan8.4

Final Overall Score8.0

$1.67 / serving · 30 servings / container

Lean

Transparent Labs9.4

Medium-Stim180mg caffeine

Price & Value6.4

Ingredients & Blend7.6

Brand Reputation9.4

Review Scan8.4

8.0

$1.67 / serving · 30 servings / container

Pros

180mg of caffeine with a matching 180mg of L-theanine is an easy daily dose
1g of acetyl-L-carnitine is actually written on the label

Cons

6g of citrulline malate and 2g of beta-alanine are both lighter than the doses in Bulk

Label Snapshot

Caffeine180mg

Beta-Alanine2g

L-CitrullineNone

L-TheanineNone

CreatineNone

Flavors

Strawberry Lemonade, Green Apple, Blue Raspberry, Raspberry Hibiscus, White Cherry, Orange, Tropical Punch, Fruit Punch, Sour Grape

Where to buy

3 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 Labs2.5K reviews at Transparent Labs

Available flavors

Strawberry Lemonade, Green Apple, Blue Raspberry, Raspberry Hibiscus, White Cherry, Orange, Tropical Punch, Fruit Punch, Sour Grape

transparentlabs.comOfficial Brand Store

Buy for $49.99$1.67 / serving

iHerb

Available flavors

Strawberry Lemonade, White Cherry

iherb.com

Buy for $49.99$1.67 / serving

Amazon

Available flavors

Blue Raspberry, Tropical Punch, Strawberry Lemonade

amazon.com

Buy for $54.99$1.83 / 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 Lean

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

Transparent Labs Lean video reviews

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

6:05
Transparent Labs LEAN PRE-WORKOUT Review: 30-Day TestFeastGood · Aug 1, 2023
16:44
Can’t Believe I Just Found This! 🤯 Transparent Labs Lean Pre-Workout ReviewGarage Gym Homie · Jul 21, 2024

Transparent Labs Lean Stats

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

Rankings

Top 17%

#33of 199

All pre-workouts

Top 23%

#10of 45

Medium-Stim Pre-Workouts

#6of 6

Transparent Labs products

Medium-Stim Pre-Workouts

All 45 Products

Supplekings Score

Great8.0

Higher than 79% of tubsAverage 7.6

Price & Value0.56.4
Ingredients & Blend0.17.6
Brand Reputation1.49.4
Review Scan0.68.4

Shopper Rating

4.6/5

2,479 reviews at Transparent Labs

Sold At

At a Glance

Type: Medium-stim pre-workout
Caffeine: 180mg
Stim level: Medium
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.

CaffeineMore than 16% of tubs

180mg

124mgTypical 300mg420mg+

Citrulline MalateMore than 13% of tubs

1gTypical 6g8g

Beta-AlanineMore than 16% of tubs

1.6gTypical 3.2g6.4g+

ALCAR

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+

Per 100mg of caffeineCheaper than 7% of tubs

$0.93

$0.27Typical $0.56$1.33+

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

Transparent Labs Lean FAQ

How much caffeine is in Transparent Labs Lean?

Each serving of Transparent Labs Lean has 180mg of caffeine, more than 16% of the 122 pre-workout tubs we rank that list an amount. That makes it a medium-stim pre-workout (150-249mg), where it ranks #10 of 45.

What's on the Transparent Labs Lean label?

The doses we track are 6g of citrulline malate (more than 13% of the 25 that list it), 2g of beta-alanine (more than 16% of the 107 that list it), and 1g of ALCAR.

How much does Transparent Labs Lean 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 Lean?

We checked 3 stores on Oct 26, 2026: Transparent Labs, Amazon, and iHerb. It comes in 9 flavors.

How do shoppers rate Transparent Labs Lean?

Shoppers give Transparent Labs Lean an average of 4.6 out of 5 across 2,479 reviews at Transparent Labs. Our Review Scan score for it is 8.4 out of 10.

Who makes Transparent Labs Lean?

Transparent Labs makes Lean. 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.

How does Transparent Labs Lean score?

We score it 8.0 out of 10, #33 of 199 pre-workouts. Its strongest rating is Brand Reputation 9.4 and its weakest is Price & Value 6.4.