In a recent survey, healthcare practitioners defined supplement “quality” by the following criteria:1





For nearly three decades, we have delivered high-quality hypoallergenic products with an unwavering dedication to Zero Compromises. Pure Results.

This is why Pure Encapsulations is the leading brand in the healthcare practitioner market, ranking highest in ingredient purity, quality testing, and trust.2

Download the Pure Encapsulations Quality Defined brochure to learn more.

When sourcing raw ingredients, we selectively partner with suppliers from around the world whose quality standards match the rigor of our own.

All raw materials and finished products are independently tested for purity and potency by our third-party laboratories:


Investment in Science

Scientific research is a top priority for Pure Encapsulations. Only those compounds whose potency and clinical value have been validated through science or research go to market.

In the past few years, more than 30 product-specific clinical studies have been published in leading peer reviewed journals, which attests to the caliber of our academic research with top institutions, including:

Our commitment includes multi-million dollar investments to support key research initiatives with:

Cleveland Clinic Foundation: 4-year, $1 million dollar partnership, focused on clinical research, education, medical curriculum development, and policy change
Institute of Nutraceuticals and Functional Foods: 5-year, multi-million dollar research program in cardiometabolic health
Practice Research Initiative: The most comprehensive study of Functional Medicine providers and practice operations to date
Polyphenols Consortium: Award-winning, collaborative effort with academic and commercial partners to research polyphenols in cognitive health


Collaboration at Every Step

Our strength lies in our collaborations, unified in purpose, toward a more vibrant future of nutritional wellness. We partner with leaders in the most important nutritional health areas: genomics, mental health and emotional well-being, weight management, immunology, and more. A few of our distinguished medical partners include:

Caroline J. Cederquist, M.D., a board-certified bariatric physician who specializes in nutrition and metabolism
Felice L. Gersh, M.D., an award-winning integrative gynecologist focused on women’s health
Izabella Wentz, Pharm.D., FASCP, a nationally acclaimed thyroid specialist and licensed pharmacist
James Greenblatt, M.D., a dually-certified child and adult psychiatrist and a pioneer in integrative psychiatry
Nathan Morris, M.D., a certified functional medicine practitioner and a leader in the field of nutritional genomics

Our team of scientific and medical experts work diligently to formulate effective products using optimal ingredient levels in premium forms.

Nothing demonstrates efficacy more than results in clinical practice. Our Medical Advisors put our products to the test and have developed a series of protocols based on their experience with the effectiveness of our products.


Unwavering Standards

Exacting production standards and an insistence on transparency require an unrivaled confidence in quality assurance and hypoallergenic products.

Highest-Quality Ingredients

  • Raw materials are tested for identity, potency, microbial contaminants, heavy metals (including mercury, arsenic, cadmium and lead), 32 solvent residues, and allergens
  • Herbal ingredients are tested for 70 different pesticide compounds
  • Essential fatty acids and fish/krill oils are tested for dioxins, furans, PCBs, and other agents
  • Suppliers undergo rigorous qualification procedures and audits

Pure Encapsulations is NSF-GMP registered in the U.S., GMP certified in Canada and exceeds the standards of the United States Pharmacopeia (USP) for supplement manufacturing.

Details Make the Difference

All manufacturing takes place in temperature, humidity, and dust-controlled rooms

Our comprehensive allergen SOPs prevent ingredient cross-contamination

Production employees receive extensive, ongoing training on the safe handling of raw materials and finished products

Each piece of equipment is completely dismantled, sterilized, and inspected before every production run

Machine operators inspect the capsules every 15 to 20 minutes, and quality assurance specialists inspect them every 60 to 90 minutes

Stability procedures are employed for retained potency throughout shelf life

To access Certificates of Analysis for our broad-spectrum, US-sourced agricultural hemp product, click here.


Transparency From Start to Finish

Our hypoallergenic supplements are meticulously manufactured and tested to ensure they are

  • Wheat and gluten
  • Egg
  • Peanuts
  • Trans fats and hydrogenated oils
  • GMOs
  • Magnesium stearate
  • Coatings and shellacs
  • Artificial colors, flavors and sweeteners
  • Unnecessary binders, fillers and preservatives

If a product contains ingredients that are derived from major allergens, such as soy, dairy or shellfish, it is prominently labeled and the term "hypoallergenic" is removed from the statement of identity on the product label.

For a more complete definition of hypoallergenic, download the Pure Encapsulations® Hypoallergenic White Paper.

GMO Policy

All Pure Encapsulations ingredients, including those derived from corn, are GMO free. We obtain statements from each of our suppliers certifying that the ingredients do not contain GMOs. For some nutrients, we conduct PCR testing to confirm the absence of genetically modified material.

Certified Gluten-Free

Pure Encapsulations® is proud to announce that we have received gluten-free certification from The Gluten-Free Certification Organization (GFCO). The GFCO logo is an internationally recognized, trusted symbol signifying that a product meets the highest standards in quality for gluten-free certification.

Look for the GFCO logo on over 300 of our products in the months ahead.

Our Medical Advisors have been retained as consultants in advising Pure Encapsulations.

1. Nutrition Business Journal® 2016.
2. Kaiser Survey 2014.