Shipping Available

03330 112 829
10AM - 5:30PM UK

Accepted Payments
item - £0.00

You have no items in your shopping cart.


Endura / PAK Guard (Perque) 180 Caps

More Views

Endura / PAK Guard (Perque) 180 Caps

Safely increases glutamine in the brain, muscle and gut for significantly better energy production throughout the body. Improves digestive health, increases stamina, and sharpens mental clarity. Patented recycled glutamine formula prevents glutamate build up, a powerful excito-neurotoxin that damages nerves.

Availability: In stock

Special Price £40.00

Regular Price: £69.99


The simple fact is that living in today’s stressful world takes its toll on everyone’s health. To combat the ravages of modern life‚ help is available in the form of Perque’s Endura/PAK Guard. This powerful and effective supplement features a non-stimulant‚ energy-boosting formula that delivers relief to those suffering from chronic fatigue or mental “fuzziness”‚ while adding beneficial support for the repair of the intestinal walls. 

Endura / PAK Guard can assist if you have: 

  • Constant fatigue.
  • The need to increase endurance.
  • Difficulties with concentration and maintaining mental sharpness. 
  • A desire for quick recovery following exercise.

The symptoms of chronic fatigue are quite often cured—or at least substantially reduced—by targeting the causes‚ which often include a diet deficient in necessary nutrients‚ a sedentary lifestyle that includes little or no physical exercise‚ and irregular or insufficient amounts of sleep. Research has shown that effective nutritional supplementation with essential vitamins and minerals can play a critical role in remedying deficiencies‚ promoting the elimination of toxins‚ and establishing an overall sense of wellbeing. 

Endura/PAK Guard by Perque offers invaluable nutritional support for muscular stamina‚ as well as mental clarity. The exclusive formula boasts a unique combination of the valuable amino acids L-glutamine and pyridoxal alpha-ketoglutarate (PAK); glutamine serves as the principal fuel for your intestines‚ brain‚ muscles‚ and liver. 

This supplement is an exceptional option for those with intestinal irritations. Its ingredients assist in the regeneration of the intestines’ surface cells; this is particularly important due to the fact that intestinal surfaces are quite vulnerable to abrasion and erosion caused by mechanical action‚ toxins‚ or atypical bacteria‚ and symptoms such as diarrhea or chronic constipation may result.

You can read a full description of Dr Russell Jaffe's Endura / PAK Guard HERE.

About Perque and Dr Jaffe.
The roots of PERQUE Integrative Health, LLC (PIH) are imbedded in the history and works of the scientist who founded the company and who has remained, with the support of a dedicated staff, at its helm for over 30 years.
Dr. Russell M. Jaffe, CEO and Chairman of PIH worked at the National Institutes of Health (NIH) from 1973 to 1979 where the seeds of his vision began. On leaving NIH Dr. Jaffe began a journey that sought to support the emerging field of Integrative and Regenerative Medicine. His dedication to the application of primary prevention and his commitment to providing superior nutraceuticals and autoimmune testing with clinical evidence of superior efficacy has made him a sought after speaker and leader in his chosen field. In 1984 after, five years of research, Dr. Jaffe invented a process that would eventually lead him to the family of companies he runs today. This innovation’s primary effort was to create a technology platform for measuring and monitoring all delayed allergies in the world’s first single step amplified (ELISA) procedure. When accomplished it was the first performed in a living cell through an advanced culture technique (ACT). Today with over 50,000 cases in the lab database it remains a vibrant part of Dr. Jaffe’s integrated operations.

Expanding to Reston, then to Sterling and now to a custom built headquarters and warehouse in Ashburn, Virginia, Dr. Jaffe is continuously expanding and seeking new ways to improve his existing operations while maintaining his production lab, ELISA/ACT™ Biotechnologies, his PERQUE nutraceutical plant, and an R&D facility, RMJ Holdings Rx. Dr. Jaffe and his team of highly trained professionals continually look for new ways to help speed the transition from our current healthcare system’s symptom reactive model to a more functionally integrated, effective and compassionate system.

PIH is the turnkey outcome of years of Dr. Jaffe’s scientific research. It brings to market two decades of rethinking safer more effective, novel and proprietary dietary supplements, supplement delivery systems, diagnostic testing, and validation studies. In pilot clinical outcomes studies The Alkaline Way Program, utilizing LRA by ELISA/ACT tests for delayed hypersensitivities along with PERQUEsupplementation to remove repair deficits, has been confirmed to achieve improvements in common conditions such as diabetes, fibromyalgia muscle pain, and chronic fatigue syndrome (CFIDS).

Today, the company creates integrated systems that implement assessment protocols and tools that combine information technology with advanced products for enhanced understanding, compliance and monitoring outcomes.

From his humble beginnings in 1984 to today, Dr. Jaffe and his team have steadily moved forward and produced a volume of evidence-based work that has profoundly enhanced functional human nutrition, integrative medicine and proactive preventive healthcare models.

Scientifically Superior
Every part of PIH is backed by an extraordinary level of scientific superiority and efficacy. Exceptional evidence-based science is the foundation for every innovative idea, technology, and theory that PIH uses to create and design its superior products, programs and services.

The motivation that drives PIH is a healthier world. Good health – mental, physical and emotional – is the unsung hero of happiness. It’s what allows us to feel motivated, strong and inspired. At PIH, everything we do is to promote and encourage a healthier world, ensuring better lives for the generations of today and tomorrow. Healthy living isn’t just our philosophy, it’s our way of life!

At PIH, breaking new ground is status quo. We have blazed the trail for almost every path we’ve ever traveled. Identifying the flaws and weaknesses of commonly accepted axioms is our strength and its what’s allowed PIH to define new means, new norms – new ways of thinking. At times we’ve been considered revolutionary and even controversial, but like all pioneers, we bring the fight before the fight is won.

At PIH we know good health – good living – is a long term commitment. To be truly healthy, we must accept and devote ourselves to lifestyle changes, not quick fix pill-popping. And while these changes feel daunting at first, with PIH as a partner for life, daunting changes quickly give way to optimal health and vitality no pill can match. This is why our integrative solutions to health are designed with long term impact in mind so that we move beyond suppressing symptoms and instead, resolve the truer ailments that cause them.


Energised Nutrients / Amount per serving / % Daily Value

  • L-glutamine (free form) 1‚500 mg / *
  • PAK (pyridoxal alpha-ketoglutarate) 500 mg / *
  • Rice flour (organic) 90 mg / *
  • Magnesium (vas C16 and C18 alkyls ƚ) 13 mg / 3
  • Vegetable capsules 291 mg / *

Full disclosure label (no hidden or inactive ingredients).

  • ƚ from whole‚ untreated palm fruit and leaf.
  • * Daily value not established by FDA.

Does not contain: Citrus‚ MSG‚ wheat‚ gluten‚ corn‚ starch‚ sugar‚ soy‚ yeast‚ zein‚ sulfate‚ phosphates (other than coenzymes)‚ preservatives‚ casein or other milk derivatives. No GMOs. Kosher Parve.


  • As a dietary supplement take three (3) capsules on empty stomach upon rising and three (3) capsules before bed or as directed by a health professional.
  • Plus‚ take three (3) additional capsules prior to exercise.


  • Brand: Perque.
  • Form: Capsules.
  • Quantity: 180.
  • Container: BPA Free plastic tub.
  • Storage: Keep in a cool dry place, keep out of reach of children, Store below 70° F.
  • Estimated shelf life from purchase: 1 - 2 years.


The products and the claims made about specific products, articles and claims made in the articles and information written on or through this site have not been evaluated by Ancient Purity, the MHRA, the FSA or the United States FDA and are not approved 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. Providing a product for sale does not imply Ancient Purity recommendation of that product, its suitability or its efficacy. Ancient Purity cannot give medical opinions. No comment or entry in this site or in any communication from Ancient Purity may be taken as such.

Prices and promotions are subject to change without notice. Customers should always carefully check all the details printed on the package before opening the product. Whilst all efforts are made to ensure accuracy of description, specifications and pricing there may be occasions where errors arise. Should such a situation occur the company cannot accept your order. In the event of a mistake you will be contacted with a full explanation and a corrected offer. The information displayed is considered as an invitation to treat not as a confirmed offer for sale. The contract is confirmed upon supply of goods, Prices and promotions are subject to change without notice.

Please read the Terms and Conditions of using this site, by using the site you are accepting the terms and conditions.
All Material on this site © 2014 Ancient Purity Ltd Registered in England & Wales 07801142 VAT Reg 168 335 488