Buy l-leucine at deep discount. Save up to 75% on pharmaceutical free form l-leucine. Buy factory direct at below wholesale cost.

Private Label,
Contract Mfg.,
Raw Ingredients

L-Leucine Powder (free form)

Pharmaceutical grade ultra-pure for maximum bioavailability.
Free form amino acid with no fillers or additives. HPLC verified.

Powder - 500 Grams
Item #23270 (166 Servings) Retail: $49.99
your price: $21.97

save 54%

Powder - 1000 Grams
Item #23271 (333 Servings) Retail: $99.99
your price: $36.97

save 60%

Powder - 2268 Grams
Item #23272 (756 Servings)
your price: $69.88

save 67%

OU certified Kosher pareve. Click to view certification

L-Leucine is an essential amino acid, meaning it can not be made by the body, and must be acquired through food or dietary supplements. Leucine is classified as a "branched-chain amino acid" (BCAA). It comprises about 8% of the total amino acid count in your body's protein structures and is the fourth most concentrated amino acid in skeletal muscle tissue.

L-Leucine stimulates muscle protein synthesis and may be the major fuel involved in anabolic (tissue building) reactions. This makes them especially important for body builders and other athletes in sports that demand explosive strength.

The branch chain amino acids valine, leucine, and isoleucine enhance protein synthesis in liver cells and muscle cells and help promote muscle recovery after exercise. They contribute to energy production in the body by being oxidized in the cell’s mitochondria. Branch chain amino acids are used by body builders and athletes to produce an anabolic effect and assist in the repair of micro tears in muscle tissue that are a normal result of exercise. Leucine is thought to be the most effective BCAA for preventing the body’s burning of muscle stores for energy during intense workouts because it is converted to glucose more quickly than isoleucine and valine.

      • Maintains nitrogen balance.
      • Preserve lean muscle tissue.
      • Supplies the body with energy when under stress.
      • Preserves muscle glycogen (glucose stored in muscle tissue used to power muscular contraction).
      • Enhances thinking abilities that can decline as physical activity becomes more intense.

We guarantee our supplements to be the freshest and purest: Our powders and capsules contain only pure active ingredient with absolutely no additives. Other manufacturers, in an effort to keep costs down, dilute their products with cheap fillers and add chemical excipients to their products to speed up their manufacturing output. These practices cheat you out of the active ingredient. At NutraBio, we've perfected our manufacturing technology so that excipients aren't needed, that means no microcrystalline cellulose, magnesium stearate, silica or other fillers, just 100% pure active ingredient. NutraBio supplements are manufactured under the strictest standards producing the highest quality and purest supplements available anywhere. Our raw ingredients undergo state of the art HPLC analysis to insure zero tolerance for impurities and we manufacture our products every 2 weeks which guarantees you a minimum of 34 months before expiration.	Expiration	34 months minimum
	Grade	pharmaceutical
	Purity	99.94%+ purity (HPLC)
	Taste	tasteless
	Solubility	not soluble in water
	Characteristics	kosher
	Appearance	white crystalline powder
	Odor	none to slight
	pH	5.0~6.5
	Classification	free form amino acid
	CAS Registry	n/a
	Synonyms	n/a
	Molecular Formula	n/a
	Molecular structure

Recommended Usage: As a dietary supplement take 1 level scoop (3000 mg) mixed into water or your favorite beverage 1-2 times daily or as directed by your physician. Mix for 15 to 20 seconds using a shaker cup or mix thoroughly with a spoon. May not mix very easily. May be hygroscopic and may clump during shipment. This does not effect the efficacy of the product, but just the texture.

Hypoallergenic: Free of the most common allergens such as yeast, dairy, egg, gluten, corn, soy, rice, barley, lactose, fish and wheat. No added sugars, starch, salt, preservatives, salicylates, or artificial color, flavor or fragrance.

Warning: NOT INTENDED FOR USE BY PERSONS UNDER THE AGE OF 18. KEEP OUT OF THE REACH OF CHILDREN. If you are pregnant or breast feeding, consult your health care professional before using this product. People with known medical conditions and/or taking drugs should consult with a licensed physician and/or pharmacist prior to taking any dietary supplements.

More amino acids... More BCAA's...

We guarantee our supplements to be the freshest and purest available: This supplement contains absolutely NO additives, sweeteners or other fillers or agents that many manufacturers dilute their products with. NutraBio.com supplements are manufactured under the strictest standards producing the highest quality and purest supplements available anywhere. Our raw ingredients undergo state of the art HPLC analysis to insure zero tolerance for impurities and by-products. When it comes to price and quality you can't beat NutraBio.com. We guarantee it!

Purchase your supplements manufacturer direct at below wholesale price: Buy directly from the manufacturer and save. We cut out the middlemen and pass the savings on to you. With NutraBio.com you can buy your supplements at the same low wholesale price that the chain stores get. We've been around since 1996 and our only business has been the manufacture and supply of the highest quality nutritional supplements. We are a professional nutriceutical, FDA inspected facility which adheres to all FDA, FTC and NNFA labeling and manufacturing guidelines.

Important facts you should know about our supplements:

HPLC laboratory tested for purity.
Freshly manufactured - not expired or closeout.
Spoon mixes with no gritty taste or residue.
Backed by the NutraBio.com 30-day money back guarantee.
Free of animal products.

Certificate of Analysis Proves Quality & Freshness: Always know the expiration date of a supplement before you purchase. If the manufacturer won't give you the expiration date and a Certificate of Analysis than beware. Many online venders sell expired or nearly expired products which they get on closeout from distributors who can no longer sell them to stores. NutraBio.com guarantees that this product is from the freshest and purest raw ingredients available and was packaged within the last two weeks. Click on the red "Purity & Freshness Seal" at the top of the page to view the actual Certificate of analysis.

FREE dosing scoop with your order: Get the exact dosage every time with a free single-dose scoop. This scoop was designed by our lab to give you exactly one serving each time. No more measuring or guessing.

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*The products and claims made about specific products on this page or through this site have not been evaluated by the United States Food and Drug Administration and are not intended to diagnose, treat, cure or prevent disease. The information provided on this site is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional or any information contained on or in any product label or packaging. You should not use the information on this site for diagnosis or treatment of any health problem or for prescription of any medication or other treatment. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. Please view our full Terms Of Use for more information and the terms and conditions governing your use of this site.