Legion Pulse Stim-Free

Pulse Stim-Free

Our naturally sweetened and flavored stim-free pre-workout provides clinically effective doses of 4 lab-tested ingredients scientifically shown to boost strength, power, and pump—and without the jitters, digestive discomfort, or post-workout crash.*

• 99 peer-reviewed scientific studies support Stim-Free Pulse’s ingredients and doses
• No sugar, artificial sweeteners, flavors, food dyes, fillers, or other unnecessary junk
• Lab-tested for purity and accuracy and certified to meet or exceed FDA safety guidelines

Citrulline Malate (8 grams per serving)

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.*

This is why research shows that supplementation with citrulline malate . . .

• Improves muscle endurance*
• Relieves muscle soreness*
• Improves aerobic performance*

The clinically effective dose of citrulline malate is between 4 and 10 grams.

Beta-Alanine (3.6 grams per serving)

Beta-alanine is a naturally occurring amino acid that regulates the amount of the molecule carnosine that can be stored in the muscles.*

Carnosine reduces muscle acidity, which increases the amount of work that muscles can do before they become fatigued.*

This is why research shows that supplementation with beta-alanine . . .

• Reduces exercise-induced fatigue*
• Improves anaerobic exercise capacity*
• Increases potential workload, which can lead to an increase in lean mass*
• Reduces feelings of fatigue during exercise*

The clinically effective dose of beta-alanine is between 2.6 and 6.4 grams.

We chose to include 3.6 grams of beta-alanine per serving because it provides significant performance benefits while also minimizing the common and harmless side effect of a mild prickling, itching, or tingling of the skin.

Alpha-GPC (300 milligrams per serving)

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*
• Mitigates cognitive decline as we age*
• Increases growth hormone levels*

The clinically effective dose of alpha-GPC is between 150 and 1,200 milligrams, with 250 to 500 milligrams sufficient for cognitive benefits.

We chose to include 300 milligrams of alpha-GPC (50%) per serving because it’s enough to provide some benefit without eating up too much budget that we’d rather spend on other ingredients.

Furthermore, this dose reduces the likelihood of headaches in people who are using stim-free Pulse and Forge together, and especially in people who are using stim-free Pulse, Forge, and Ascend together.

Betaine (2.5 grams per serving)

Betaine (also known as trimethylglycine) is an amino acid found in various foods like beets (hence the name), spinach, and quinoa.

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.*

The clinically effective dose of betaine is between 1.25 and 2.5 grams.