Transparent Labs Lean Cutting Pre-Training Formula
Transparent LabsAnalysis updated August 2026 · How Scout scores
At a glance
Summary
The LEAN Cutting Pre-Training Formula contains beneficial ingredients such as Betaine Anhydrous, Acetyl L-Carnitine, and Citrulline Malate, which support athletic performance and endurance. It uses natural caffeine from green coffee beans and stevia as a sweetener, avoiding artificial additives. However, the use of 'Natural Flavors' introduces some ambiguity, which slightly impacts the overall score due to potential processing concerns.
Key ingredients 15
Betaine AnhydrousGood
Betaine Anhydrous is known for its role in enhancing muscle endurance and strength. It is a naturally occurring compound that supports cellular hydration and methylation processes. Its inclusion in supplements is generally considered beneficial for athletic performance.
Benefits
Supports muscle endurance and strength, and aids in cellular hydration.
Acetyl L-Carnitine HCIGood
Acetyl L-Carnitine HCI is an amino acid derivative that supports energy production by facilitating the transport of fatty acids into the mitochondria. It is often used for its potential cognitive benefits and fat metabolism support. This ingredient is well-regarded in the context of pre-workout supplements.
Benefits
Enhances energy production and supports cognitive function and fat metabolism.
Choline BitartrateGood
Choline Bitartrate is a source of choline, an essential nutrient that supports brain health and cognitive function. It is involved in the synthesis of acetylcholine, a neurotransmitter important for memory and muscle control. Its inclusion in supplements is beneficial for mental focus and performance.
Benefits
Supports brain health and cognitive function, and aids in neurotransmitter synthesis.
L-TheanineGood
L-Theanine is an amino acid found in tea leaves, known for promoting relaxation without drowsiness. It is often used in combination with caffeine to enhance focus and reduce the jittery effects of caffeine. This ingredient is valued for its calming effects and cognitive benefits.
Benefits
Promotes relaxation and enhances focus, especially when combined with caffeine.
BioperineGood
Bioperine is a black pepper extract that enhances the bioavailability of nutrients and supplements. It is often included to improve the absorption of other active ingredients. This ingredient is beneficial for maximizing the efficacy of the supplement.
Benefits
Enhances the bioavailability and absorption of nutrients and supplements.
Citrulline MalateGood
Citrulline Malate is an amino acid compound that enhances nitric oxide production, improving blood flow and exercise performance. It is well-regarded for its ability to reduce muscle fatigue and improve endurance. This ingredient is a staple in effective pre-workout formulations.
Benefits
Enhances blood flow and exercise performance, reducing muscle fatigue.
Beta-AlanineGood
Beta-Alanine is an amino acid that helps buffer acid in muscles, improving endurance and reducing fatigue. It is commonly used in pre-workout supplements for its performance-enhancing effects. This ingredient is beneficial for athletes seeking to improve high-intensity exercise performance.
Risks
May cause a harmless tingling sensation known as paresthesia.
Benefits
Improves endurance and reduces muscle fatigue during high-intensity exercise.
PurCafe Organic CaffeineNeutral
PurCafe Organic Caffeine is derived from green coffee beans and provides a natural source of caffeine. It is used to enhance alertness and physical performance. Being organic, it indicates a higher quality and less processed form of caffeine.
Risks
Excessive caffeine intake can lead to jitteriness, insomnia, and increased heart rate.
Benefits
Enhances alertness and physical performance, and is a natural source of caffeine.
TheobromineNeutral
Theobromine is a compound found in cocoa that has mild stimulant effects similar to caffeine. It is known for its potential to improve mood and cognitive function. Its effects are generally milder than caffeine, making it a complementary ingredient in energy supplements.
Risks
High doses may cause nausea and headaches.
Benefits
May improve mood and cognitive function with mild stimulant effects.
Huperzine ANeutral
Huperzine A is a compound extracted from the Huperzia serrata plant, known for its potential cognitive benefits. It is used to support memory and learning by inhibiting the breakdown of acetylcholine. Its effects are generally positive but require careful dosing.
Risks
May cause nausea, diarrhea, and insomnia if taken in excess.
Benefits
Supports memory and learning by inhibiting acetylcholine breakdown.
Calcium SilicateNeutral
Calcium Silicate is used as an anti-caking agent to prevent clumping in powdered products. It is generally recognized as safe and does not contribute significant nutritional value. Its role is primarily functional in maintaining product consistency.
See more about Calcium Silicate →Silicon DioxideNeutral
Silicon Dioxide is a common anti-caking agent used to maintain the free-flowing nature of powdered supplements. It is considered safe for consumption and does not affect the nutritional profile of the product. Its inclusion is purely for functional purposes.
See more about Silicon Dioxide →Stevia ExtractNeutral
Stevia Extract is a natural sweetener derived from the stevia plant, providing sweetness without calories. It is a popular alternative to artificial sweeteners and is considered safe for consumption. Its use in supplements is generally neutral, offering sweetness without significant health concerns.
Benefits
Provides sweetness without calories, serving as a natural alternative to artificial sweeteners.
Beet Root PowderNeutral
Beet Root Powder is used for natural coloring and may offer some health benefits due to its nitrate content. It is often included in supplements for its potential to improve blood flow and exercise performance. However, in small amounts, its primary role is as a natural colorant.
Benefits
May improve blood flow and exercise performance due to nitrate content.
Natural FlavorsBad
Natural Flavors is a catch-all term that can include a wide range of substances, often processed and not fully disclosed. While derived from natural sources, the lack of transparency and potential for processing diminishes its quality. This ingredient is penalized for its ambiguity and potential for containing undesirable compounds.
Risks
Potential for containing processed and undisclosed substances.
Processing
Ultra-Processed Foods
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