Description
Our naturally sweetened and flavored[1] stim-free pre-workout provides clinically effective doses[2] of 4 lab-tested ingredients[3] scientifically shown to boost strength, endurance, and power—and without the jitters, digestive discomfort, or post-workout crash.
- 99 peer-reviewed scientific studies[4] support Stim-Free Pulse’s ingredients and doses[5]
- No sugar, artificial sweeteners, flavors, food dyes, fillers, or other unnecessary junk[6]
- Lab-tested for purity and accuracy and certified to meet or exceed FDA safety guidelines[7]
Citrulline malate is the amino acid L-citrulline bound with malic acid, a substance found in many fruits that is involved in the creation of cellular energy.
L-citrulline turns into another amino acid in the body known as L-arginine, which increases the production of a gas known as nitric oxide that widens blood vessels and improves blood flow.[8][9]
This is why research shows that supplementation with citrulline malate . . .
- Improves muscle endurance[10][11][12]
- Relieves muscle soreness[13]
- Improves aerobic performance[14][15]
Beta-alanine is a naturally occurring amino acid that regulates the amount of the molecule carnosine that can be stored in the muscles.[16]
Carnosine reduces muscle acidity, which increases the amount of work that muscles can do before they become fatigued.[17]
This is why research shows that supplementation with beta-alanine . . .
- Reduces exercise-induced fatigue[18][19][20][21]
- Improves anaerobic exercise capacity[22][23][24][25][26]
- Increases potential workload, which can lead to an increase in lean mass[27][28]
- Reduces feelings of fatigue during exercise[29][30][31]
The clinically effective dose of beta-alanine is between 2.6 and 6.4 grams.
Alpha-glycerophosphocholine (also known as alpha-GPC and glycerophosphocholine) is a compound that contains two molecules known as choline and glycerophosphate.
Choline is a nutrient that’s vital for brain health and function, and glycerophosphate is a substance that helps transport choline to the brain.
When ingested, alpha-GPC increases the activity of a chemical in the brain known as acetylcholine, which is used by nerves to communicate with each other, and provides the brain with glycerophosphate, which can improve its health and function.
This is why research shows that supplementation with alpha-GPC . . .
- Increases power output[33]
- Mitigates cognitive decline as we age[34]
- Increases growth hormone levels[35]
Betaine’s rich in a special molecule known as a methyl group, which is a vital component of many physiological functions, including DNA production, fat metabolism, cellular energy production, and more.
Betaine’s also an osmolyte, which is a substance that helps balance fluid levels inside and outside cells.
These two properties are beneficial during times of physical stress, and this is why studies show that betaine boosts muscle endurance and increases strength.[37][38]
