NOW Foods L-Leucine Powder 9 oz

NOW® Sports L-Leucine Powder supplies pure, free-form L-leucine with no fillers. Leucine is one of the three branched-chain amino acids and is considered the most critical for muscle tissue, because it acts as the primary trigger that switches on muscle protein synthesis — the process by which the body builds and repairs muscle. Adding extra leucine to a protein shake or intra-workout drink is a popular strategy among athletes looking to maximize the muscle-building response to their training and nutrition.*

About the key ingredients

• L-Leucine (free-form): The key branched-chain amino acid that triggers muscle protein synthesis, supporting muscle building and recovery.*
• Other ingredients: Pure powder with no fillers, letting you adjust your serving to your needs.

Who it's for

NOW® Sports L-Leucine Powder is ideal for athletes, bodybuilders and serious strength trainers who want to boost the leucine content of their protein shakes or intra-workout drinks to maximize the muscle-building response. It appeals to those who understand leucine's role as the primary trigger for muscle protein synthesis and want to fine-tune their amino intake. Mix a scoop into your shake or workout drink.*

Suggested use

Mix 1 level tablespoon into 8 oz. of water or other beverage 1 to 3 times daily. Store in a cool, dry place after opening.

Quality & certifications

• Family Owned Since 1968
• GMP Quality Assured
• Made in the USA
• Halal
• Informed Sport Certified
• Kosher
• Non-GMO
• Steroid Tested
• UL Dietary Supplement Certified
• Vegan

Frequently asked questions

Why leucine specifically?
Leucine is the branched-chain amino acid that most directly triggers muscle protein synthesis.*

How do I use it?
Add the recommended scoop to a protein shake or intra-workout drink.*

Is there any filler?
No — it's a pure powder.*

Cautions & interactions

As with any supplement, talk to your doctor before adding this product to your routine if you are pregnant or nursing, taking prescription medication, or managing a health condition. Keep it out of reach of children, store in a cool, dry place, and don't exceed the recommended serving. If you take a multivitamin or several supplements, review the combined amounts with your healthcare provider so you don't unintentionally double up on the same nutrient.

Allergen information: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

⚠ California Proposition 65 Warning: California Proposition 65 WARNING: Consuming this product can expose you to chemicals, including lead, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.