Fabrics that are STANDARD 100 by OEKO-TEX® certified have passed tests for harmful substances in every stage of its processing and therefore present minimal health risks, especially to sensitive baby skin. Testing for harmful substances includes: Illegal substances, legally regulated substances, known harmful (but not legally regulated) chemicals and other parameters for health care.
Textile products may be certified according to Oeko-Tex Standard 100 only if all components meet the required criteria without exception.
Learn more about the OEKO-TEX® standard here:
https://www.oeko-tex.com/standard100