24 Aug 2026

OEKO-TEX® certification: what it guarantees and why it matters for textile yarns

OEKO-TEX®: what it is and what it certifies

In today’s textile industry, material safety, transparency, and supply chain quality have become key priorities for brands, manufacturers and consumers. In this context, OEKO-TEX® is one of the most widely recognized international certification systems for verifying the safety and compliance of textile products.

The OEKO-TEX® system includes several standards covering materials, manufacturing processes, and supply chain sustainability. Among these, the most widely used is STANDARD 100 by OEKO-TEX®, a certification that tests textile materials for harmful substances throughout all stages of production.

The certification can apply to yarns, fabrics, accessories, and finished garments, ensuring compliance with strict chemical limits established at the international level. For this reason, within the landscape of modern textile certifications, compliance with STANDARD 100 by OEKO-TEX® is now considered an important indicator of reliability and quality throughout the textile supply chain.

 

 

 

OEKO-TEX® standard 100: certification classes and levels

One of the most important aspects of OEKO-TEX® certification is the classification of products into different classes, defined according to the level of skin contact. OEKO-TEX® Standard 100 includes four main classes:

  • Class 1: products for babies and children up to three years of age;
  • Class 2: products with direct skin contact;
  • Class 3: products without direct skin contact;
  • Class 4: furnishing and decorative materials.

Class 1 represents the strictest and most rigorous level, as it is designed for materials intended for particularly sensitive skin contact. Within this standard, Appendix 6 introduces even stricter requirements for controlled chemical substances such as formaldehyde, pesticides, heavy metals, allergenic dyes, and potentially irritating residues.

For a textile yarn, compliance with OEKO-TEX® Class 1 Appendix 6 therefore means meeting particularly stringent criteria for chemical safety and material quality, an increasingly important factor for sectors such as underwear, sportswear, and activewear. Fulgar textile yarns comply with this standard, the most rigorous level established by OEKO-TEX®, confirming the company’s focus on process control, raw material reliability, and the quality of materials intended for technical apparel and garments that come into direct contact with the skin.

 

 

 

Why OEKO-TEX® certification is important for the textile industry

Today, OEKO-TEX® certification is not only a technical requirement, but also a strategic tool for brands and manufacturers looking to communicate reliability, transparency, and perceived quality.

In the fashion and technical apparel industries, consumers are paying increasing attention to the safety of materials that come into contact with the skin, while companies must comply with increasingly stringent international standards for chemical compliance and supply chain control.

For this reason, using OEKO-TEX® certified yarns means relying on materials that have been tested according to globally recognized parameters, reducing the risks associated with the presence of unwanted substances and increasing the reliability of the finished product. For many brands operating in the premium and technical apparel segments, OEKO-TEX® compliance is now a requirement from the earliest stages of product development.

Want to learn more about Fulgar’s OEKO-TEX® compliant solutions? Contact the Fulgar team to identify the yarn best suited to your project.

OEKO-TEX® certification