LEAN

How Much Caffeine Does Lean Pre-Workout Have?

Can I Take Lean Pre-Workout on Non-Training Days?

Can I Take Lean Pre-Workout if I am Subjected to Drug Testing for my Sport?

Why Doesn't Lean Pre-Workout Contain Creatine?

What is the difference between Bulk, Lean and Stim-Free?

I Don't Live in the United States, Can I Still Buy Transparent Labs Lean Pre Workout?

Yes - our fulfillment center allows us to ship worldwide. Standard shipping for international orders typically takes 10-14 business days to arrive.

Does this Product Contain Nuts?

L-Citrulline Malate (2:1) | 6,000 mg

L-citrulline is an amino acid naturally found in watermelon that plays an important role in kidney function. It's become a popular ingredient in pre-workout supplements due to its ability to boost nitric oxide levels [1]. When nitric oxide production increases, blood flow improves, allowing nutrients and oxygen to replenish muscle tissue more efficiently. 

Ultimately, this translates to greater muscle pumps and heightened energy levels.
 

Numerous studies have demonstrated the ergogenic effects of L-citrulline malate, the citrulline salt of malic acid, such as:

• Improving strength, aerobic performance, and muscle endurance [2, 3]
   
• Elevating nitric oxide levels even more than equivalent doses of L-arginine [4]
   
• Enhancing muscle anabolism and reducing muscle catabolism [5]

Beta-Alanine | 2,000 mg

Beta-alanine is a beta-amino acid that combines with L-histidine to form a dipeptide known as carnosine. Supplementing with beta-alanine has been shown to increase muscle carnosine levels, which are quickly depleted during intense exercise [6].
 

Carnosine is an endogenous dipeptide that functions as a buffer in muscle cells, thereby attenuating the accumulation of acidic byproducts of muscular exertion (e.g. lactate and hydrogen ions) [7]. Hence, bolstering muscle carnosine levels—via beta-alanine—allows you to push yourself longer and harder in the gym.
 

Pre-workout supplements almost always contain beta-alanine but in inefficacious doses. We made sure to include an evidence-based dose of beta-alanine (2,000 mg) in every scoop of LEAN Pre-Workout. Relevant evidence-based benefits of beta-alanine include:

• Delaying the onset of neuromuscular fatigue during intense exercise [8]
   
• Increasing overall muscle strength [9] 
   
• Improving muscle endurance and total work capacity [10]
   
• Reducing and combatting the formation of dysfunctional proteins and promoting the formation of healthy proteins [11]
   
• Significantly increasing lean muscle mass as part of a diligent resistance-training program [12]
   

*Note that beta-alanine causes a benign tingling sensation known as paresthesia while the body acclimates to higher carnosine levels. This effect is harmless and gradually lessens with consistent use.

BetaPure™ Betaine Anhydrous | 1,500 mg

Acetyl-L-Carnitine (ALCAR) | 1,000 mg

Choline Bitartrate | 500 mg

PurCaf® Organic Caffeine | 180 mg

While most pre-workouts contain synthetic caffeine anhydrous, we formulated LEAN Pre-Workout with organic caffeine derived from green coffee beans (as PurCaf®). 

On the molecular level, caffeine (chemically known as 1,3,7-trimethylxanthine) is an alkaline, organic substance derived from xanthine — a biologically important purine base found in many bodily tissues and fluids. Methylxanthines like caffeine and theobromine stimulate the central nervous system (CNS) and heart to promote wakefulness and motivation.
 

Numerous studies have shown that taking caffeine before exercise can significantly improve overall performance, largely by reducing the rate of perceived exertion [23]. Caffeine may also enhance endurance and strength by increasing fatty acid oxidation and sparing muscle glycogen [24].

L-Theanine | 180 mg

L-theanine is an isomer of the amino acids L-glutamate and L-glutamine. It was discovered centuries ago as one of the primary amino acids in green tea leaves and is also found in various mushroom species.

L-theanine is highly bioavailable when taken orally and actively traverses the blood-brain barrier to enhance mental acuity and attenuate stress [25, 26]. 

Its nootropic effects are appropriately described as "alert relaxation," which is to say it promotes a sense of calmness while improving focus. L-theanine can also help take the edge off of stimulants, particularly caffeine. In fact, research shows that pairing L-theanine with caffeine creates a nootropic synergy that bolsters cognitive function and alertness more effectively than taking either nootropic on its own [27].

Theobromine | 50 mg

Theobromine is the primary alkaloid found in cocoa beans and is essentially the “little brother” of caffeine. Its functions in the body are suggested to be complementary to those of caffeine, acting as a phosphodiesterase inhibitor and central nervous system stimulant [28].

Research has also found that theobromine has differential contributions to mood and cognitive function compared to caffeine, providing further insight into the distinct yet synergistic nature of these naturally occurring stimulants [29].

BioPerine® | 5 mg

Huperzine A | 100 mcg