L-Leucine - 500mg - 120 caps

L-Leucine - 500mg - 120 caps

By ProSource Item PSP119
8.8 out of 10 | 5 Review(s)


Chose your flavor

500 mg(s)/120 cap(s)
In Stock
Serving Size: 1 Capsule
Servings Per Container: 120
Amount Per Serving% Daily Value *
L-Leucine 500 mg**
Other Ingredients: Gelatin, Magnesium Stearate and Rice Flour** Daily value not established.

100% Pure Form of the Protein-Synthesizing Amino

Long associated with the related BCAAs, isoleucine and valine, leucine has lately emerged as a uniquely powerful anabolic agent in its own right. In clinical testing, leucine has demonstrated a remarkable capacity to decrease protein degradation and improve protein synthesis, especially after intense exercise. Athletes have been looking for leucine in its pure form thanks to its ever-expanding reputation for driving improved anabolism.

ProSource L-Leucine is one of the few leucine supplements available in a 100% pure, high-potency form.


Click to read about
An inside look at the ProSource headquarters: See What Sets Our Brand Apart

Q & A

Product Questions

No questions yet. Be the first to ask the question!
Recommended Usage: Take two to three capsules between meals once a day.

Warning: Read and follow all label instructions prior to use. Keep out of reach of children. Not for use by individuals under 18. Consult with a physician before using this medication or have any medical condition. Do not take if pregnant or nursing.

Customer Reviews 5 item(s)

I always use post workout with my protein shake. Good price, hard to find pure Leucine.
(Posted on 2/1/2014)
Overall a good supplement. Used it to get the most out of all the money spent on protein supplements so for its low price it is definitely worth it. And as alway Prosource has done a great job with quality. I've never had anything of theirs that isn't at least four stars. Thanks!
(Posted on 10/19/2012)
Have been taking Leucine for a quite some time with my post workout meals and they really have helped me recuperate faster from the AM and PM sessions. I have been able to keep a high intensity workouts without the feeling of overtraining.
(Posted on 1/17/2012)
Body is still getting use to the leucine but I can feel a great difference between using it and not. Sold on it.
(Posted on 6/13/2011)
Good product. Wish the dosage was higher. Easy way to take an important amino.
(Posted on 4/13/2011)

Write Your Own Review

You're reviewing: L-Leucine

How do you rate this product? *

1 1 star
2 2 star
3 3 star
4 4 star
5 5 star