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WPI HL, Advanced High Leucine WPI Formula For Building More Lean Muscle

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Advanced High Leucine Whey Protein Isolate for Building More Lean Muscle

Our ALL NEW High Leucine WPI represents a breakthrough in Protein Technology. Thanks to a unique processing technology, this new WPI, which is exclusive to MAX’S, contains 20% higher levels of peptide bound Leucine, meaning you get more peptide bound Leucine in every serve. Leucine has emerged as the anabolic hero of all the amino acids. It is a regulator of the all-important mTOR signaling pathway that controls protein synthesis in trained muscle.


To compliment this fantastic new High Leucine WPI, this formula also includes Pepform™ High Leucine Peptides for maximum peptide bound Leucine activity, along with free form and instantised BCAA’s to stimulate maximum muscle recovery. It all adds up to the best, most advanced and highest peptide bound Leucine enriched WPI formula you can use!

Per Serve in Water

27g protein

0.2g Fat

0.3g Carbs

SUITABLE FOR: Beginner, Intermediate and advanced level bodybuilders and strength athletes for building lean muscle; Athletes of all levels for building muscle and improving recovery after exercise or sport.



High Leucine Whey Protein Isolate

The secret to High Leucine WPI is to start with whole fresh milk rather than liquid whey. It is purified with ultrafiltration and microfiltration to retain full functional and biological activity that changes the protein profile by helping to retain more Leucine – 20% MORE! The resulting Whey is:


  • Extremely pure
  • Higher in protein (>95% dry basis)
  • 20% higher in L-Leucine
  • Instantized (mixes easily in water or milk)
  • Ultra low in lactose (< 0.2%)
  • Ultra low fat (< 0.4%)
  • Highly bioactive

This new High Leucine WPI shows improved muscle retention and higher muscle output against traditionally produced WPI’s.

High Leucine WPI is not one single type of protein but a collection of protein types or ‘fractions’. Each fraction has specific properties that are very beneficial to serious trainers. High Leucine Whey Protein Isolate contains:

Protein Fraction

Properties and Benefits


High levels of Branched Chain Amino Acids, particularly L-Leucine,  support recovery and protein synthesis, and reduce blood pressure


Antimicrobial and stress modulation through cortisol reduction. It has the most structurally similar protein profile to human breast milk.


Stimulates muscle recovery and tissue synthesis; helps control hunger; improves intestinal health; supports the growth of ‘good’ intestinal bacteria

Bovine Serum Albumin

Helps protect against toxins and acts as an anti oxidant


A complex group of proteins (including IgA, IgM, IgE and IgG’s) enhances immune response, lowers blood pressure, improves digestive health and neutralises toxins and viruses.


Binds and transports iron, antimicrobial, antiviral, antioxidant, immunomodulation,


This enzyme has antimicrobial and antiviral properties

Insulin Like Growth Factors

IGF-I is the hormone largely responsible for the growth-promoting properties of growth hormone and acts directly on body cells stimulate tissue and bone synthesis.


This new WPI was initially developed for medical grade nutrition. Now MAX’S has been able to source this fantastic new protein exclusively. We are the only company globally using this protein making it unique to the bodybuilding and sports industry.

Branched Chain Amino Acid Technology

The Branched Chain Amino Acids L-Leucine, L-Isoleucine and L-Valine have a special role in muscle metabolism. They are signalling amino acids and are responsible for switching on protein synthesis. L-Leucine in particular is extremely anabolic as we have just discussed. BCAA’s have a strong anabolic/anti-catabolic action for athletes engaged in heavy weight training.

Taking extra free form amino acids is not the whole answer because they are not easily absorbed. Science shows that BCAA’s which are bonded to other amino acids in small peptides (Peptide Bonded BCAA’s), along with BCAA’s that are “instantized” are much more soluble so they are quickly absorbed and assimilated by your body and produce superior muscle growth. MAX’S WPI uses new generations BCAA’s:

  • Instantized BCAA’s – BCAA’s are micronized to maximise surface area and then combined with a trace levels of lecithin to maximise solubility for maximum absorption.
  • PepForm™ Leucine Peptides is a new peptide derived from Whey that contain high levels of short chain Leucine-rich peptides. PepForm™ delivers the anabolic amino acid L-Leucine in a soluble and highly bioavailable form to stimulate muscle synthesis after heavy training.

Nutritional Information


Per Serve 30g

Per 100g







Fat – Total

Fat – Saturated





Carbohydrates – Total

Carbohydrates - Sugars







High Leucine Whey Protein Isolate, Natural & Nature Identical Flavours & Colours, Vegetable Gums (415, 412), Pepform™ Leucine Peptides, L-Leucine, L-Isoleucine, L-Valine, Soy Lecithin, Sweeteners (955, 950), Minerals (Potassium Citrate, Tri Calcium Phosphate, Magnesium Oxide, Ferrous Fumarate, Zinc Sulphate, Potassium Iodide, Sodium Selenite, Chromium Chloride), Vitamins (Vitamin C, Nicotinamide, Vitamin B6, Pantothenic Acid, Riboflavin, Thiamin, Vitamin A Acetate, Folic Acid, Vitamin D3, Biotin, Vitamin B12)