A Decade of ECO PASSPORT and Its 2025 Lab Findings

The OEKO-TEX ECO PASSPORT certification, now ten years old, has grown into a global benchmark for safer chemical inputs in the textile, leather, and apparel supply chain. With over 65,000 certified products, 2,125 active certificates, and 1,400 customers spread across more than 50 countries, the scheme is widely adopted—particularly in China and India, which together account for roughly two-thirds of all certificates.

To mark the anniversary, OEKO-TEX published a fresh analysis of its 2025 laboratory testing data. The results underscore that while overall compliance is high, certain dye types continue to trip thresholds for hazardous substances. Disperse dyes and vat/sulphur dyes, in particular, recorded a high number of failed tests for quinoline, aniline, and dimethyl fumarate (DMFU). These findings are not unusual for the sector, but they highlight why independent, analytical testing remains essential.

On the other hand, per- and polyfluoroalkyl substances (PFAS) were detected at very low levels in the ECO PASSPORT samples. However, laboratories did record an increase in total fluorine, which can indicate the presence of non-PFAS fluorinated compounds. To bring clarity, OEKO-TEX developed a new differentiation method that determines whether detected fluorine originates from PFAS or from other, less concerning sources—a vital tool as regulators crack down on fluorinated chemicals worldwide.

What the Testing Data Reveals About Textile Chemistry Risks

Dyes Under Scrutiny: Quinoline, Aniline, and DMFU Failures

The repeated failures in disperse and vat dyes point to persistent formulation challenges. Quinoline and aniline are often impurities or degradation products in certain dye synthesis routes, while DMFU—a biocide historically used to prevent mould in leather goods—still crops up in some textile auxiliaries despite being banned in the EU. The data suggests that cheaper, less-purified dye lots are more prone to these exceedances, creating a clear incentive for brands to demand ECO PASSPORT-certified chemicals.

PFAS and Fluorine: A Methodological Leap Forward

The low PFAS findings are encouraging, but the rise in total fluorine highlights a measurement blind spot: many fluorinated substances are not PFAS but can still trigger regulatory alarms. The new differentiation method is a smart move. It allows manufacturers to prove that a product’s fluorine content comes from, say, an inorganic fluoride rather than a banned PFAS, avoiding unnecessary reformulation and keeping compliant products on the market.

From Certificate to Systemic Change

OEKO-TEX’s own messaging has shifted. CEO Alfred Beerli stresses that chemical transparency is “becoming a legal obligation,” not just a voluntary market differentiator. The certification now requires quality management systems, staff training, and responsible waste disposal—turning ECO PASSPORT from a simple substance list into a process-based standard. For dye producers and chemical formulators, this means compliance is no longer a one-off test but an ongoing operational commitment.