Skip to content
Download the Mobile App


104 reviews
Orders placed Mon-Sat by 12pm PST will ship the same day.
What Is L-Leucine?

L-leucine, sometimes simply referred to as Leucine, is a branched chain amino acid (BCAA) that plays an important role in energy production and muscle maintenance. L-leucine can be found in meats, dairy, wheat, and soy and is most commonly taken by bodybuilders and athletes to help boost athletic performance.

L-Leucine Benefits

L-leucine is the most important of the BCAAs and is commonly taken as part of a preworkout regimen to aid muscle recovery and promote lean muscle growth.

  • Branched Chain Amino Acid (BCAA)
  • Helps increase athletic performance
  • Boosts athletic endurance
  • Promotes lean muscle growth
  • Aids muscle recovery

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.

Serving Size: 2500 mg
Servings per Container: -

Amount Per Serving % Daily Value
L-Leucine 2500 mg *
* Daily Value not established.
** Based on 2,000 calorie diet
Other Ingredients: None
Free of: Sugar, soy, dairy, yeast, gluten, corn and additives.

Suggested Use: As a dietary supplement, take 2500 mg twice a daily, or as directed by physician.

Always consult your health care provider before taking any supplements. Pregnant or lactating women, people with existing medical conditions, or people taking medications should consult their health care provider/s before taking any dietary supplement. If you experience any adverse condition after taking this dietary supplement, discontinue use immediately and consult your health care provider.

Keep out of reach of children.

Customer Reviews
4.9 Based on 104 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • delivery
  • Bulk Supplements
  • everything
  • stars
  • Bulk supps
  • tome
  • care
  • gains
  • glitches
  • hassle
robert l.
United States United States
I recommend this product
Always Great

Another order taken care of with no glitches, as always! Easy to order, great choices and prices, and no hassle and on time delivery. I think Bulk Supplements should get 6 STARS!!

Ray G.
United States United States
I recommend this product
Excellent Product

Since using the product I have seen muscle gains. Very satisfied

David S.
United States United States
Great Product!

Great Product!

United States United States
I Love Leucine!

Everything I order from Bulk Supps is top notch. Their Leucine works well, because I notice gains when I take it. I don't know how they manage to find so many great, high-quality products that actually work!

robert l.
United States United States
Phx Bob

Excellent product and hassle free ordering and delivery.

naderfh h.
United States United States

Came on tome fast good