For athletes who refuse to compromise on ingredients, this Transparent Labs Lean Pre-Workout review breaks down why it is the top-rated choice for a “clean cut.”
More Than Just Caffeine
Most pre-workouts are just stimulants. LEAN is a hybrid tool designed to preserve muscle while attacking fat.
The Problem with Dieting: When you lower calories, your thyroid (metabolism) slows down to save energy.
The Solution: LEAN includes a Thyroid Support Complex (Iodine + Zinc + Guggulsterones) to keep your metabolic rate high during your workout.
What’s Inside (Per Scoop)
- 6,000 mg Citrulline Malate: The gold standard for pumps and endurance.
- 3,200 mg Beta-Alanine: Buffers lactic acid so you can push out those last 2-3 reps.
- 180 mg Caffeine + Theanine: The perfect ratio for sharp, focused energy without the jittery “crash.”
- Acetyl L-Carnitine: Helps transport fatty acids into cells to be burned for energy.
Sour Grape Taste 🍇
Transparent Labs is famous for flavor innovation. “Sour Grape” hits the perfect balance of tartness and sweetness, using only natural Stevia. No chemical aftertaste.
This product contains a clinical dose of Beta-Alanine. You will likely feel a tingling sensation (paresthesia) on your skin/lips 15 minutes after drinking. This is harmless and means the product is working.









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