Clean Form Nutrition has become the first brand to earn NSF Certified for Sport® certification for a finished product built on NNB Nutrition's Pürest Creatine™, layering finished-product verification on top of already-established ingredient-level credentials that include Informed Choice certification and independent laboratory testing from Eurofins and Mérieux NutriSciences.
For operators and brand owners in the sports nutrition and functional beverage space, the certification matters beyond marketing copy. NSF Certified for Sport® evaluates finished formulations for substances banned by major sporting organizations and reviews manufacturing quality and labeling compliance — meaning the assurance follows the product all the way through blending, packaging, and handling, not just at the raw-ingredient stage.
Purity Data Sets It Apart
Third-party comparative testing conducted by Eurofins evaluated three separate production lots of Pürest Creatine™ against a leading premium creatine widely recognized as a purity benchmark in the industry. Across all three Pürest Creatine™ lots, levels of dicyandiamide (DCD), dihydrotriazine (DHT), and creatinine fell below the laboratory's limits of quantification. The competing benchmark sample, by contrast, contained measurable levels of both DCD and creatinine, with DHT below the quantification limit in both products. Mérieux NutriSciences provided additional independent confirmation of the impurity profile.
Those numbers carry weight in a category where consumer and regulatory scrutiny is rising. Creatine remains one of the most extensively studied sports nutrition ingredients, backed by decades of evidence supporting strength and power output. But as global supply expands and price competition intensifies, manufacturing quality has emerged as a meaningful differentiator — particularly for brands targeting competitive athletes subject to drug testing.
Four-Layer Verification Model
The certification stack NNB Nutrition and Clean Form Nutrition have assembled is unusually comprehensive for a single-ingredient product. It spans Eurofins comparative impurity analysis, Mérieux NutriSciences third-party testing, Informed Choice ingredient-level screening for prohibited substances, and NSF Certified for Sport® finished-product certification. Each layer addresses a distinct point of potential quality failure, from raw-material consistency to post-blending contamination risk.
For supplement formulators and sports nutrition brands evaluating ingredient sourcing, that structure offers a replicable template at a time when transparency claims alone are losing persuasive power. Dustin Elliott, Chief Brand Officer at NNB Nutrition, positioned the achievement as evidence that the next phase of creatine competition will be won on measurable purity and independent verification rather than commodity pricing.
As the functional food and beverage industry continues to see crossover between sports nutrition and mainstream wellness, the certification model pioneered here is likely to raise expectations across adjacent categories — from ready-to-mix powders and ready-to-drink formats to creatine-fortified functional foods entering the foodservice supply chain.
Written by Michael Politz, Author of Guide to Restaurant Success: The Proven Process for Starting Any Restaurant Business From Scratch to Success (ISBN: 978-1-119-66896-1), Founder of Food & Beverage Magazine, the leading online magazine and resource in the industry. Designer of the Bluetooth logo and recognized in Entrepreneur Magazine's "Top 40 Under 40" for founding American Wholesale Floral, Politz is also the Co-founder of the Proof Awards and the CPG Awards and a partner in numerous consumer brands across the food and beverage sector.
