
Transparent Labs
Transparent Labs LEAN
Pre-workout designed for fat loss and lean muscle building
Last updated: December 15, 2025
Quick Summary
Transparent Labs LEAN pairs their signature transparent formula with fat-metabolism support ingredients. Ideal for cutting phases where you still need training intensity.
Pros & Cons
Pros
- +Includes fat-burning ingredients (acetyl-L-carnitine, green tea)
- +Same transparent, clinical dosing as BULK
- +No artificial sweeteners or colors
- +Moderate caffeine won't interfere with cutting-phase sleep
Cons
- −Fat-burning effects are modest at best
- −Similar price to BULK — limited differentiation
- −Fewer pump ingredients than BULK
Key Ingredients
| Ingredient | Dose |
|---|---|
| Citrulline Malate | 6g |
| Beta-Alanine | 4g |
| BetaPure Betaine | 2.5g |
| Caffeine Anhydrous | 200mg |
| Acetyl-L-Carnitine | 750mg |
| Green Tea Extract | 100mg |
| Chromium Picolinate | 200mcg |
Full Review
Transparent Labs LEAN takes the trusted Transparent Labs formula philosophy and tailors it for those in a cutting phase or focused on body recomposition.
Energy & Focus: The same clean 200mg caffeine approach as BULK, delivering reliable energy without overstimulation. During a caloric deficit when you're already feeling depleted, the moderate approach is actually ideal — you don't want to add stim-crash to your already reduced calories.
Performance: Beta-alanine at 4g and betaine at 2.5g are at full clinical doses, ensuring your training intensity doesn't drop during a cut. Citrulline malate at 6g provides solid pumps, though not as dramatic as BULK's 8g dose.
Fat-Loss Support: Here's where LEAN differentiates itself: acetyl-L-carnitine (750mg), green tea extract (100mg), and chromium picolinate (200mcg) are included to support fat metabolism. Let's be honest — these aren't magic fat burners. But combined with proper diet and training, they provide a modest metabolic edge.
Transparency: Like all Transparent Labs products, every ingredient and dose is clearly listed. No hidden formulas, no proprietary blends.
Value: Same $49.99 price as BULK, which raises the question: if you're not specifically cutting, BULK offers more pump-focused ingredients for the same money. LEAN makes most sense during defined cutting phases.
The Bottom Line: LEAN is the right choice during a dedicated cutting phase when you want to support fat metabolism while maintaining training performance. During bulking or maintenance, stick with BULK for better pump ingredients.
Frequently Asked Questions
How much caffeine is in Transparent Labs LEAN?▼
Transparent Labs LEAN contains 200mg of caffeine per serving.
How many servings are in Transparent Labs LEAN?▼
Each tub of Transparent Labs LEAN contains 30 servings at a price of $49.99, which works out to $1.67 per serving.
What are the key ingredients in Transparent Labs LEAN?▼
The key ingredients include Citrulline Malate (6g), Beta-Alanine (4g), BetaPure Betaine (2.5g), Caffeine Anhydrous (200mg), Acetyl-L-Carnitine (750mg), Green Tea Extract (100mg), Chromium Picolinate (200mcg).
Is Transparent Labs LEAN good for beginners?▼
With 200mg of caffeine, Transparent Labs LEAN has a moderate stimulant profile that can be suitable for beginners. Always start with a half dose to assess tolerance.
What Others Are Saying
Best pre-workout I've found for cutting
Natalie R.
November 20, 2025
I've tried a lot of pre-workouts during cut phases and Lean is specifically designed for it. The acetyl L-carnitine and forslean help preserve muscle while in a deficit, and the clean energy keeps me going through calorie-restricted workouts. Transparent Labs quality across the board — no junk ingredients.
Dialed in formula for fat loss goals
Marcus T.
January 10, 2026
Using Transparent Labs Lean during my 12-week cut and it's been excellent. The thermogenic ingredients make a noticeable difference in body temperature during cardio sessions. Still get great pumps from the citrulline dose. Same quality and transparency as all other TL products. Worth the premium price.
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