Clean Form Nutrition Achieves NSF Certified for Sport® Certification with NNB Nutrition's Pürest Creatine™, Setting a New Benchmark for Creatine Purity

With independent testing from Eurofins and Mérieux NutriSciences, Informed Choice ingredient certification, and NSF Certified for Sport® finished-product certification, Pürest Creatine™ delivers multiple layers of quality assurance for competitive athletes.

BOISE, Idaho, Oct. 13, 2026 /PRNewswire/ -- NNB Nutrition, a global innovator in high-quality nutritional ingredients, is proud to announce that Clean Form Nutrition has become the first brand to achieve NSF Certified for Sport® certification for a finished product featuring NNB Nutrition's Pürest Creatine™. The achievement follows Pürest Creatine™'s recent Informed Choice certification and extensive third-party purity testing, establishing a compelling new standard for quality assurance in sports nutrition.

Creatine is among the world's most popular and extensively researched sports nutrition ingredients, supported by decades of scientific evidence demonstrating its benefits for strength, power, and athletic performance. However, as global demand accelerates and manufacturers compete to offer increasingly affordable creatine products, questions surrounding manufacturing quality, ingredient purity, and potential contamination have become more important than ever.

Although creatine itself is permitted in competitive sports, the manufacturing process can introduce unwanted impurities or, in some circumstances, prohibited substances through cross-contamination. For professional athletes and individuals subject to routine drug testing, these risks make independent verification especially valuable, even for a single-ingredient product like creatine.

NSF Certified for Sport®: An Additional Layer of Protection for Athletes

NSF is an independent organization that develops public health and safety standards and provides third-party testing and certification services. Its NSF Certified for Sport® program is designed to help reduce the risk that athletes and other individuals subject to drug testing unknowingly consume prohibited substances through dietary supplements.

The certification program evaluates finished products for substances banned by major sporting organizations, along with applicable manufacturing quality and labeling requirements.

This distinction is particularly important because even when a raw ingredient is legal in sport, contamination can occur during subsequent manufacturing, blending, packaging, or handling.

Clean Form Nutrition's newly certified Pürest Creatine™ finished product provides athletes with an additional layer of independent verification, helping reduce the risks associated with inadvertent consumption of prohibited substances.

Pürest Creatine™ Demonstrates Exceptional Purity Against a Leading Industry Benchmark

Long before achieving these sports certifications, NNB Nutrition developed Pürest Creatine™ with a focus on exceptional purity and manufacturing quality.

Independent laboratory testing conducted by Eurofins and Mérieux NutriSciences has evaluated Pürest Creatine™ for key creatine manufacturing impurities, including dicyandiamide (DCD), dihydrotriazine (DHT), and creatinine.

In comparative testing conducted by Eurofins, three separate production lots of Pürest Creatine™ were evaluated alongside a leading premium creatine widely regarded as a benchmark for purity in the industry.

Across all three Pürest Creatine™ lots, DCD, DHT, and creatinine were below the laboratory's limits of quantification. By comparison, the leading premium creatine sample contained measurable levels of both DCD and creatinine, while DHT remained below the quantification limit in both products.

These findings demonstrate Pürest Creatine™'s exceptional impurity profile, even when evaluated against a premium creatine recognized for its stringent quality standards.

For consumers and brands seeking high-quality creatine, these results provide measurable evidence of purity that goes beyond conventional marketing claims.

Informed Choice Certification Adds Independent Verification at the Ingredient Level

In addition to its extensive impurity testing, Pürest Creatine™ recently achieved Informed Choice certification, adding another layer of independent quality assurance.

Informed Choice is a globally recognized sports nutrition certification program that screens certified products and ingredients for substances prohibited in sport.

For Pürest Creatine™, this certification provides additional confidence in the raw ingredient before it enters finished-product manufacturing.

Combined with Eurofins and Mérieux NutriSciences impurity testing, Informed Choice certification reinforces NNB Nutrition's commitment to delivering creatine that meets the expectations of brands serving competitive athletes and quality-conscious consumers.

Clean Form Nutrition Brings Multiple Layers of Testing Together

With Clean Form Nutrition becoming the first brand to receive NSF Certified for Sport® certification for a finished product containing Pürest Creatine™, the ingredient now benefits from an unusually comprehensive approach to independent quality verification.

This approach includes four complementary measures:

1. Eurofins: Independent laboratory analysis of DCD, DHT, and creatinine, including comparative testing against a leading premium creatine.
2. Mérieux NutriSciences: Additional third-party laboratory testing for creatine manufacturing impurities.
3. Informed Choice: Ingredient-level certification with screening for substances prohibited in sport.
4. NSF Certified for Sport®: Finished-product certification with testing for prohibited substances and evaluation of applicable quality requirements.

Together, these independent testing and certification programs address two distinct priorities: minimizing unwanted manufacturing impurities and reducing the risk of prohibited-substance contamination.

The result is a compelling combination of ingredient purity and finished-product verification that positions Clean Form Nutrition's certified Pürest Creatine™ formulation among the most comprehensively quality-verified creatine options for athletes.

A New Standard for Creatine in Sport

As creatine becomes increasingly accessible and competition among manufacturers intensifies, NNB Nutrition believes the next evolution of the category will be defined by transparency, measurable purity, and independent certification.

For athletes, choosing a creatine supplement should involve more than confirming that creatine itself is permitted in competition. The quality of the raw ingredient, the consistency of its manufacturing process, and the integrity of the finished product all matter.

By combining exceptional impurity testing results, Informed Choice certification, and NSF Certified for Sport® finished-product certification, Pürest Creatine™ and Clean Form Nutrition are helping raise expectations for what premium creatine can offer.

For athletes seeking confidence in both ingredient purity and finished-product quality, Clean Form Nutrition's NSF Certified for Sport® Pürest Creatine™ formulation represents a new benchmark for creatine supplementation.

About NNB Nutrition

NNB Nutrition is a global innovator in science-driven nutritional ingredients, specializing in advanced solutions for the dietary supplement, sports nutrition, and functional food industries. Through ingredient innovation, rigorous quality standards, and independent testing, NNB Nutrition helps brands develop differentiated products that meet the evolving demands of consumers worldwide.

Pure. Potent. Precise Ingredients.

Dustin Elliott, Chief Brand Officer
NNB Nutrition
www.nnbnutrition.com

SOURCE NNB Nutrition