Transparent Labs Stim-Free Caffeine Free Pre-Workout
Transparent LabsAnalysis updated August 2026 · How Scout scores
At a glance
Summary
This pre-workout supplement features beneficial ingredients like citrulline malate, beta-alanine, and betaine anhydrous, which support exercise performance and endurance. It avoids artificial sweeteners and dyes, using stevia and beet root powder instead, which is a positive aspect. However, the presence of 'natural flavors' without full transparency and the use of multiple additives slightly detract from its overall formulation quality.
Key ingredients 19
PotassiumGood
Potassium is a vital electrolyte that supports heart and muscle function. It is provided as potassium chloride, a common and effective form. Helps counteract the effects of sodium and supports cardiovascular health.
Risks
Excessive potassium intake can lead to hyperkalemia, which affects heart function.
Benefits
Supports cardiovascular health and muscle function, and helps maintain electrolyte balance.
Citrulline MalateGood
Citrulline malate is known to enhance blood flow and improve exercise performance. It is a combination of citrulline and malic acid, both beneficial for energy production. It is well-regarded for reducing muscle fatigue and improving endurance.
Benefits
Improves blood flow, reduces muscle fatigue, and enhances exercise performance.
Beta-AlanineGood
Beta-alanine is an amino acid that helps buffer acid in muscles, improving endurance. It is commonly used in pre-workouts for its performance-enhancing effects. May cause a harmless tingling sensation known as paresthesia.
Risks
May cause a harmless tingling sensation known as paresthesia.
Benefits
Improves muscular endurance and reduces fatigue during high-intensity exercise.
Betaine AnhydrousGood
Betaine anhydrous supports muscle strength and power output. It is derived from natural sources like beets and is known for its role in methylation processes. It may also support liver health and cellular hydration.
Benefits
Enhances muscle strength, power output, and supports liver health.
TaurineGood
Taurine is an amino acid that supports cardiovascular health and muscle function. It is naturally occurring and often included in energy and sports supplements. It helps with electrolyte balance and reduces oxidative stress.
Benefits
Supports cardiovascular health, muscle function, and reduces oxidative stress.
L-TyrosineGood
L-Tyrosine is an amino acid that supports cognitive function and stress response. It is a precursor to neurotransmitters like dopamine and norepinephrine. It is beneficial for mental performance under stress.
Benefits
Enhances cognitive function and stress response, supporting mental performance.
ElevATPGood
ElevATP is a natural combination of ancient peat and apple extract that supports ATP production. It is known to enhance energy and performance without stimulants. It is beneficial for increasing cellular energy levels.
Benefits
Enhances ATP production, increasing energy and performance naturally.
SenactivGood
Senactiv is a blend of Panax notoginseng and Rosa roxburghii that supports energy production and recovery. It is known for its anti-inflammatory and antioxidant properties. It helps improve muscle recovery and endurance.
Benefits
Supports energy production, recovery, and has anti-inflammatory properties.
BioperineGood
Bioperine is a black pepper extract that enhances nutrient absorption. It is commonly used to increase the bioavailability of other ingredients. It is beneficial for improving the effectiveness of supplements.
Benefits
Enhances nutrient absorption and bioavailability of other ingredients.
Huperzine AGood
Huperzine A is a compound that supports cognitive function and memory. It is derived from the Chinese club moss and is known for its neuroprotective effects. It is beneficial for enhancing mental clarity and focus.
Benefits
Supports cognitive function, memory, and enhances mental clarity.
Beet Root PowderGood
Beet root powder is used for natural coloring and is rich in nitrates. It supports blood flow and cardiovascular health. It is a natural source of antioxidants and nutrients.
Benefits
Supports blood flow and provides antioxidants and nutrients.
Total CarbohydrateNeutral
Total carbohydrates provide energy but are not a significant source of nutrients in this context. They are included primarily as a filler or for texture. No significant health risks identified for this ingredient.
Benefits
Provides a source of energy, though minimal in this formulation.
SodiumNeutral
Sodium is an essential electrolyte that helps maintain fluid balance and nerve function. It is derived from Himalayan rock salt, which is a natural source. Excessive intake can lead to hypertension and cardiovascular issues.
Risks
Excessive sodium intake can lead to high blood pressure and cardiovascular diseases.
Benefits
Essential for maintaining fluid balance and proper nerve and muscle function.
Silicon DioxideNeutral
Silicon dioxide is used as an anti-caking agent to prevent clumping. It is generally recognized as safe and is commonly used in supplements. No significant health risks identified for this ingredient.
Benefits
Prevents clumping and ensures even distribution of ingredients.
Calcium SilicateNeutral
Calcium silicate is used as an anti-caking agent and is generally recognized as safe. It helps maintain the free-flowing nature of powdered products. No significant health risks identified for this ingredient.
Benefits
Prevents clumping and maintains product consistency.
Citric AcidNeutral
Citric acid is used as a preservative and flavor enhancer. It is naturally found in citrus fruits and is widely used in food products. No significant health risks identified for this ingredient.
Benefits
Enhances flavor and acts as a preservative.
Stevia ExtractNeutral
Stevia extract is a natural sweetener derived from the stevia plant. It provides sweetness without calories and is considered safe for consumption. No significant health risks identified for this ingredient.
Benefits
Provides sweetness without adding calories.
Rebaudioside MNeutral
Rebaudioside M is a component of stevia extract that provides sweetness. It is a zero-calorie sweetener and is considered safe for consumption. No significant health risks identified for this ingredient.
Benefits
Provides sweetness without adding calories.
Natural FlavorsBad
Natural flavors are often used to enhance taste but lack transparency in their composition. They can contain a variety of compounds, some of which may not be beneficial. The lack of disclosure can be concerning for those with allergies or sensitivities.
Risks
Potential allergens or sensitivities due to undisclosed compounds.
Processing
Ultra-Processed Foods
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