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Why quality matters

In the world of dietary supplements, quality is not a nice-to-have; it’s your assurance of purity and potency. That’s why we go beyond compliance to guarantee that our source materials and finished goods live up to their labels, your expectations, and our trustworthy reputation earned over more than 50 years.

WORLD-CLASS STANDARDS

Proven by testing, testing, and more testing

A dedicated team of 75 quality experts tests every raw material we receive. Then they test the formulas throughout manufacturing, and finally, the product before it goes to you.

Ingredient testing


✔ PURITY testing ensures the ingredient contains no unwanted components

✔ CONTAMINANTS testing ensures raw materials meet regulated limits for unwanted substances such as bacteria, heavy metals, and residual chemicals

✔ IDENTITY testing confirms the ingredient listed on the label is what’s in your bottle

✔ POTENCY testing ensures ingredients are present in the proper amounts

✔ COMPOSITION testing ensures key compounds are present in the proper amounts

Product testing

  • In-Process

    Performs end-to-end testing every few minutes throughout manufacturing.

  • Analytical

    Ensures the product is free from harmful levels of contaminants.

  • Microbiology

    Verifies products are pathogen free and that all materials meet quality standards.

  • Physical

    Tests flavor, appearance, and sensory qualities for the customer experience.

  • Stability

    Proves products will maintain potency and quality through the expiration date.

Testing every year

Numbers are based on annual averages.

170+ different raw materials are sourced and tested

2,000 Hours are spent reviewing suppliers and material quality

13,000 Samples are tested to ensure ingredient identities, potency, purity, safety, and consistency

95,000 tests are conducted, all with test methods and data recorded

Ingredient Sourcing

Our sourcing advantage

Although we rely on long-established, trusting partnerships with suppliers, we still quality-test raw materials in our labs for a variety of characteristics. Our sourcing choices are rooted in experience:

  • Finding amazing ingredients from all around the world
  • Doing business in diverse global markets
  • Evaluating growers and suppliers
  • Negotiating Pricing
  • Detecting issues like adulteration

Gold-standard ingredients

One example of sourcing excellence is in your Ginkgo biloba products. The chemical constituents of the ginkgo leaf extract must be consistent across each batch to ensure its potency in the formula. But nature doesn’t supply the same rain, sun, and soil content every year. So, our parent company established our own ginkgo farms in France, China, and the United States.
By combining agrichemical-free leaves from three climates, we can adapt their ratios and ensure the same chemical quality in every batch.

Getting the best raw materials

Our suppliers undergo an exceptionally rigorous qualification process. If they make it past our 19-page application - covering everything from allergens to how the ingredients are produced - vendors must then disclose their safety documentation, facility audits, source verification, and processes. If they pass the second stage (many don't), the real work begins. We quarantine their materials at our labs for a battery of tests and qualfications to determine if they meet our elevated standards.

Trusted certifications

Nature's Way facilities boast long-standing certifications and registrations from some of the most reputable and respected organizations.

  • PJLA Testing

    The Nature’s Way Laboratory is accredited to the ISO/IEC 17025:2017 standard.

  • Good Manufacturing Practices

    We were among the first to earn a third-party GMP certificate from NSF.

  • Quality Assurance International

    Our liquid and tablet facility is certified organic by Quality Assurance International to meet USDA NOP standards.

  • National Sanitation Foundation

    Our facilities are certified by NSF/ANSI 455-2 Good Manufacturing Practices for dietary supplements.

Raising the bar

Our laboratory was one of the first in the dietary supplement industry to achieve ISO 17025 international accreditation, formally recognizing our technical competence and proving our quality management system provides reliable, accurate test results. In addition, we were among the first to achieve third-party Good Manufacturing Practices (GMP) certification, which confirms compliance with the dietary supplement GMP regulations.

Investing in Quality

Technological advancements

Nature's Way owns state-of-the-art manufacturing facilities, packaging operations, distribution centers, and testing labs. This means we have best-in-class capabilities for controlling quality and conducting independent investigations.

  • Industry leaders

    Experts from Nature's Way serve on the Council for Responsible Nutrition, the International Probiotics Association, and the American Association of Homeopathic Products.

  • Innovative formulas

    Unique formulations and ingredient innovations come from a deep and diverse body of knowledge gained over decades and a portfolio of over 800 products.

  • Invested in quality

    Being privately owned (not publicly traded) allows Nature's Way to invest in technological advancements and make decisions for a responsible future.

After 50 pioneering years - and 150 years for our European parent pharmaceutical company - Nature's Way is established, trusted, and dedicated to delivering the best for years to come.

Know What’s In Your Bottle

Discover the quality testing and more behind your herb, vitamin, or mineral.

Don't see your product or ingredient? View all product testing, or check back! We're under construction.

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Transparency Notice

* This statement has not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

** There are no valid studies using current scientific methods confirming this product’s efficacy. These indications are based solely on traditional homeopathic principles.

†† These indications are based solely on traditional homeopathic use. They have not been evaluated by the Food & Drug Administration.

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