OEKO-TEX® Standard 100 Certification

1. Identify applicable product scope: Determine which textile articles and all their components (fabrics, threads, buttons, zippers, coatings, labels) need to be certified under STANDARD 100. Every component must pass testing independently.

1. Select an accredited OEKO-TEX® institute: Contact one of the 17+ OEKO-TEX® member institutes (e.g., Hohenstein, TESTEX, Centrocot, FILK) in your region. They will guide you through the application process and serve as your testing partner.

1. Submit an application: Complete the application form through your chosen institute. Provide documentation on your product composition, manufacturing processes, and supply chain components.

1. Prepare and submit samples: Collect representative samples of every component of the article — including all accessories — and submit them to the accredited laboratory for chemical analysis.

1. Laboratory testing: The institute tests all samples against the STANDARD 100 criteria catalog (100+ parameters). This phase typically takes 4–8 weeks depending on the complexity of the product and number of components.

1. Review results and address failures: If any component fails, you will need to reformulate, substitute materials, or work with suppliers to resolve the issue, then resubmit affected samples for re-testing.

1. Certificate issuance: Once all components pass, the institute issues the STANDARD 100 certificate. You will receive a unique certificate number and authorization to use the STANDARD 100 label on certified products.

1. Apply the label and list on OEKO-TEX® database: Display the label on certified products and packaging. Your certificate will be publicly verifiable in the OEKO-TEX® label check database at label.oeko-tex.com.

OEKO-TEX® STANDARD 100 evaluates textile products against a comprehensive criteria catalog covering more than 100 individual parameters grouped into several key categories. Every component of the finished article — including base fabrics, linings, threads, buttons, zippers, rivets, coatings, and printed labels — must be tested independently.

Chemical safety parameters form the core of the assessment. These include: heavy metals (lead, cadmium, chromium VI, nickel, mercury, arsenic, copper, cobalt); formaldehyde content (with stricter limits for baby products and skin-contact items); pesticides and herbicides (including chlorinated and organophosphate compounds); pH value (to ensure skin compatibility); color fastness (to perspiration, saliva, rubbing, and water); allergenic and carcinogenic dyes (including azo dyes that release prohibited amines); chlorinated phenols (PCP, TeCP); phthalates (in plastic accessories); flame retardants; and biologically active substances.

Product class thresholds vary by end use and skin contact level. Products are classified into four classes: Class I (baby and toddler products, most stringent limits), Class II (articles with direct skin contact, e.g., underwear, shirts), Class III (articles without direct skin contact, e.g., jackets, linings), and Class IV (decoration materials and furnishing fabrics). Limit values for harmful substances are stricter for higher-contact and more vulnerable user groups.

Precautionary substances are also tested — chemicals not yet legally regulated but flagged by scientific evidence as potentially harmful. The criteria catalog is updated annually on April 1 to incorporate new research, regulatory changes, and emerging chemical concerns, ensuring the standard remains at the forefront of textile safety science.

OEKO-TEX® STANDARD 100 is the world's most widely recognized textile safety label, with over 200,000 certificates issued across more than 100 countries and participation from tens of thousands of manufacturers, brands, and retailers. It has become a de facto baseline requirement for textile suppliers serving major European and North American retailers, with brands like H&M, IKEA, Inditex, and Marks & Spencer routinely requiring or preferring STANDARD 100 certification from their supply chains. The label is particularly dominant in the European market, where consumer awareness of chemical safety in textiles is highest, but adoption is growing rapidly in Asia-Pacific and North America.

The program occupies a distinct niche compared to its closest competitors. Unlike GOTS (Global Organic Textile Standard), which focuses on organic fiber content and social criteria, STANDARD 100 is purely a chemical safety certification applicable to any textile regardless of fiber origin — making it accessible to a much broader range of manufacturers. bluesign® focuses on production process sustainability rather than finished product safety. This complementary positioning means STANDARD 100 is often held alongside other certifications rather than instead of them. The ZDHC MRSL (Manufacturing Restricted Substances List) addresses chemical inputs at the manufacturing stage, while STANDARD 100 certifies the finished article — the two are increasingly used together.

Market demand for STANDARD 100 is growing, driven by tightening chemical regulations (particularly REACH in Europe), rising consumer awareness of "toxic-free" products, and retailer sustainability commitments. The baby and children's apparel segment is a particularly strong driver, as parents actively seek the label. The annual criteria update mechanism keeps the standard scientifically credible and ahead of regulatory curves, which is a key competitive advantage. However, the certification's scope is limited to chemical safety and does not address environmental sustainability, social compliance, or carbon footprint — a limitation that is increasingly noted as brands seek more holistic certifications.

OEKO-TEX® STANDARD 100 was established in 1992 by the Austrian Textile Research Institute (ÖTI) and the German Hohenstein Research Institute, responding to growing consumer concern in Europe about harmful substances in textiles — particularly following media reports about formaldehyde in baby clothing and allergenic dyes in apparel. The founders recognized that no comprehensive, independent testing standard existed for finished textile products, and developed STANDARD 100 to fill that gap with a science-based, third-party verified approach.

The program grew rapidly through the 1990s and 2000s as European retailers began requiring it from suppliers, and the OEKO-TEX® Association expanded its network of accredited member institutes across Europe, Asia, and the Americas. Key milestones include the introduction of the four product classes (I–IV) to differentiate limit values by skin contact and user vulnerability, the launch of the annual criteria update cycle (now effective each April 1), and the development of the public label check database allowing consumers to verify certificate authenticity. By the 2010s, STANDARD 100 had become the world's most widely used textile safety label, with the OEKO-TEX® Association growing to 17 member institutes operating in over 100 countries. The label's scope has expanded over the decades to include leather goods (via LEATHER STANDARD), and the broader OEKO-TEX® portfolio now includes complementary certifications such as MADE IN GREEN, STeP, and DETOX TO ZERO.