leucine peptides

Protein Maximizer: Leucine Peptides

4.55 out of 5 based on 11 customer ratings
(11 customer reviews )


Protein Maximizer: Leucine Peptides Take your ordinary protein powder and turn it into a muscle making machine!

  • Use to support an increase protein synthesis
  • Increased Protein Synthesis builds muscle
  • Hardcore use only!


In stock

Product Description

Looking for 2 X the power of L-leucine?  Then you need to try leucine peptides

Protein Maximizer: Leucine Peptides, 2 X more powder than L-leucine for greater muscle gains.

Turn your protein into a super muscle builder!

Proteinfactory.com® research studies on Leucine to build muscle.

Leucine Regulates Translation Initiation of Protein Synthesis in Skeletal Muscle after Exercise

Layne E. Norton and Donald K. Layman
Division of Nutritional Sciences, Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801

Koopman R, Wagenmakers AJ, Manders RJ, Zorenc AH, Senden JM, Gorselink M, Keizer HA, van Loon LJ. (2005) Combined ingestion of protein and free leucine with carbohydrate increases postexercise muscle protein synthesis in vivo in male subjects. Am. J. Physiol. Endocrinol. Metab. 288(4): E645-653

Merrick, W. C., & Hershey, J. W. B. (2000) The pathway and mechanism of initiation of protein synthesis. In: Sonnenberg N, Hershey JWB, Mathews MB, editors. Translational control of gene expression. Cold Spring Harbor Laboratory Press.*

Bolster, D. R., Crozier, S. J., Kimball, S. R., & Jefferson, L. S. (2002) AMP-activated protein kinase suppresses protein synthesis in rat skeletal muscle through down-regulated mammalian target of rapamycin (mTOR) signaling. J. Biol. Chem. 277: 23977-23980.


More Details

Specifically using high quality protein such as whey protein contains an extraordinarily high amount of BCAA’s (over 30%). BCAA’s are known as the building blocks of muscle. BCAA’are made up of Leucine, Valine, and Isoleucine. Recently it has become known that taking 5 grams of Leucine with a protein shake or protein meal will increase protein synthesis by up to 70%. But the problem is that one can only buy L-Leucine, which is a single amino acid. This creates problems in the digestive tract as the body has trouble digesting single free form amino acids. Therefore, nutrition company’s and research groups that recommend using L-Leucine in hopes to increasing protein synthesis, instruct to take L-Leucine with food (other amino acids). But still this may not be enough for the body to digest and absorb the L-Leucine powder. To solve this problem, ProteinFactory.com is now offering Leucine Peptides. Leucine Peptides are in the form of di and tri peptides, or two or three amino acids linked together. The body absorbs amino acids through the intestinal tract and into the blood stream in the form of di and tri peptides. Our Leucine Peptides are made in the USA from the finest quality whey protein isolate and contains a complete amino acid profile including BCAA’s.

If taken 3 times per day 1 pound will last 30 days.

More Detailed Instructions: Mix 1 tsp of Leucine Peptides with your protein shake or sprinkle on any protein meal. Do not exceed 4 times per day. Best time to use Leucine Peptides is post workout with a hydrolyzed protein like (PeptoPro, or Hydrolyzed 520) and a Carbohydrate. For beginners or those concerned with taste, use Leucine Peptides with one of our Whey Protein Isolates, like Native Whey Isolate or Ultra Amino 97 Whey Isolate






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    Proteinfactory.com sells a few of different peptide proteins.  I like to call these true protein supplements because you cannot find these in typical foods you find in the grocery store…
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    What I want to do, is help you decide the best whey protein for beginners.  I will start from the lowest grade to the highest grade. Please, even though I use the term low-grade, whey protein, at any level really, whey protein is not low grade. As long as it…



Customers' review

Rated 4.55 out of 5 stars
11 reviews

11 reviews for Protein Maximizer: Leucine Peptides

  1. 3 out of 5

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  2. 2 out of 5

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    Was this review helpful to you? 0 of 2 people found this review helpful

  3. 5 out of 5

    Leucine PeptidesI feel more intense pumps during my workouts since I started adding Leucine peptides to my protein isolate.

    Was this review helpful to you? 1 of 1 people found this review helpful

  4. 5 out of 5

    Whey & Peptides Yum!Love my huge and delicious bag of whey protein powder as well as the peptides! Everything always mixes so well and without any gritty taste or feeling. Delicious!

    Was this review helpful to you? 1 of 1 people found this review helpful

  5. 5 out of 5

    Leucine Peptides - the Protein MaximizerI feel this is a great product. As an aging person, (I ju st turned 65)I need everything that I can do nutritionally to help me maintain and gain lean muscle. I also like the fact that there aren't any flavorings or additives in this product.
    I do not mind the taste. There really aren't many products out there that have leucine in a peptide form. I spent quite a while at the Vitamin Shoppe looking for it one day, even had the clerk helping me.
    I appreciate the fact these products are available at the Protein Factory.
    btw, I miss the greens & purple plant extracts you used to have

    Was this review helpful to you? 1 of 1 people found this review helpful

  6. 5 out of 5

    The "MUST HAVE" in your Arsenal!Truly a game changer! Use a serving preworkout and post workout. One word...GAINS!

    Was this review helpful to you? 1 of 1 people found this review helpful

  7. 5 out of 5

    Protein factory does it rightGreat options, truthful labels, great taste and fair cost. Protein factory does it right, even provides the third party testing results. I've been buying and using protein for over 10 years and can cofidently say protein factory rocks. Give them a shot and you'll be happy!

    Was this review helpful to you? 0 of 0 people found this review helpful

  8. 5 out of 5

    Protienfactory maximizerReally good product

    Was this review helpful to you? 0 of 0 people found this review helpful

  9. 5 out of 5

    Leucine is a must.If your goal is to grow muscle, then proteinfactorys leucine peptides are a must. Second time I used it, now it's permanent. Very little is needed. Better than roids because it's just amino acid. Yes it's that potent. Science, bitches!

    Was this review helpful to you? 0 of 0 people found this review helpful

  10. 5 out of 5

    leucine pettidesI use this several times a day. It has a bitter taste so I mix with something. Good product!

    Was this review helpful to you? 0 of 0 people found this review helpful

  11. 5 out of 5

    excellent supplementdon't feel any tiredness after workouts with this added to my protein shake, well worth the money

    Was this review helpful to you? 0 of 0 people found this review helpful

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