Leucine Peptides (hydrolyzed whey)

Leucine Peptides (hydrolyzed whey)

Overall Rating 4.23 out of 5
8 reviews

This powder consists of 50% Leucine in peptide form. The powder is actually a hydrolyzed whey protein thus you are getting a complete whole food protein.

Weight1.00 lbs
Availability In Stock!
Verification Lab Analysis 2255.pdf

Our price: $44.29

"Using Leucine allows for the muscle to achieve maximum protein synthesis and anabolic recovery."
– Layne Norton and Donald Layman, University of Illinois

Improve the effectiveness of your protein powder or protein meal with the use of Leucine Peptides, much more effective than L-Leucine!

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.

Serving size (1 tsp) 5 grams
Servings per pound: 90

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

Leucine peptides have an average MW of 16000 daltons

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


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

High-performance physical activity and post exercise recovery lead to significant changes in amino acid and protein metabolism in skeletal muscle. Central to these changes is an increase in the metabolism of the BCAA leucine. During exercise, muscle protein synthesis decreases together with a net increase in protein degradation and stimulation of BCAA oxidation. The decrease in protein synthesis is associated with inhibition of translation initiation factors 4E and 4G and ribosomal protein S6 under regulatory controls of intracellular insulin signaling and leucine concentrations. BCAA oxidation increases through activation of the branched-chain α-keto acid dehydrogenase (BCKDH). BCKDH activity increases with exercise, reducing plasma and intracellular leucine concentrations. After exercise, recovery of muscle protein synthesis requires dietary protein or BCAA to increase tissue levels of leucine in order to release the inhibition of the initiation factor 4 complex through activation of the protein kinase mammalian target of rapamycin (mTOR). Leucine's effect on mTOR is synergistic with insulin via the phosphoinositol 3-kinase signaling pathway. Together, insulin and leucine allow skeletal muscle to coordinate protein synthesis with physiological state and dietary intake.

Click Here to view the abstract

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Customer Reviews

  • Author: frank tyrrell
    This stuff is great, soreness is way down especially from lunges, before i could hardly walk for days, now small soreness only, mix with protien, and mango juice no prob
  • Author: Andrew Cortez (andrewrcortes@gmail.com)
    this shit is the nastyest tastying thing i have ever ever everrrr tasted...i messed up when i didnt add sweetner.
  • Author: Patrick Talbert
    For those that hate the bitter taste, please realize that this is a pre-digested (hydrolyzed) protein and the bitter taste means that it is what it's advertised to be. That's why the serving size is 10g as opposed to 50g. This is also why it's $45 per pound instead of $10-15. $45 for a 30-day supply (if taken 3x a day) is a very good price for the benefit that Leucine peptides provide rather than paying $20-30 for 30 servings of 's version of BCAA's, which haven't scientifically been proven to provide any benefits to muscle growth whatsoever.
  • Author: Jon
    had this recommended for my body composition and when i still had lower leg pains from training and running. pains are almost gone now after using it daily for 10+ days. downside is it tastes terrible. i mix it with 2 packets of crystal light and water with 3 tsp of it and im able to get it down.
  • Author: Daniel
    Great stuff! Yeah, it tastes a little bitter, but not nearly as bad as what the previous reviews make it out to be. Stay away from artificial sweetners. If you absolutley have to have a sweetner then use Stevia, or even plain old sugar is going to be far healthier than Splenda (sucralose) or Aspartame.
  • Author: Rebellyus
    this is that good shit!! but i would never use more than 10% of it in any blend or anything! keep it under that and itll work wonders! perfect for a blend!
  • Author: Peter
    Amazing stuff. Work out super hard and notice now that I barely if at all get sore afterwards. Taking 1 tsp mixed with Hardcore Anabolic protein mix and dextrose during w/o. And yes smell and taste are horrible. Just mix it in you'll be fine.
  • Author: Alex
    I recommend this stuff. add it to you post workout formulas and you'll feel better recovery for sure. I play football and it works!!
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