
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.
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