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OEKO-TEX Standard 100 logo
OEKO-TEX Standard 100
Global · Tier 3 Specialty
Bio-Siegel (Germany) logo
Bio-Siegel (Germany)
Germany · Tier 1 Gold
Global Organic Textile Standard logo
Global Organic Textile Standard
Global · Tier 2 Trusted
What it meansTests finished textiles for harmful substances. Important: OEKO-TEX 100 is NOT an organic certification — it certifies that the finished item is free of certain chemicals, regardless of how the fibre was grown.Germany's national organic mark, owned by the Federal Ministry of Food and Agriculture. Sits alongside the EU Leaf on most German organic packaging since 2001. Same standard as the EU Leaf — Bio-Siegel is the brand consumers recognise.The strictest, most widely-recognised standard for organic textiles. Covers the full supply chain from organic fibre to finished garment, with environmental AND social criteria.
ScopeTextilesFoodTextiles
Established199220012002
InspectionAnnual on-site + lab testing of finished productsAnnual on-site by EU-accredited German control bodyAnnual on-site, IOAS-accredited
Residue testingRequired (this is the entire point)Risk-basedRequired for finished products
Guarantees
  • Finished textile tested against the OEKO-TEX harmful-substance limit list.
  • Limits on heavy metals, formaldehyde, pesticide residue, banned amines, allergenic dyes.
  • EU baseline organic (EU 2018/848).
  • Annual on-site inspection by accredited German certifier.
  • ≥70% certified-organic natural fibre (the 'organic' grade requires ≥95%).
  • Restricted dyes, no chlorine bleach, no formaldehyde, no banned heavy metals.
  • Wastewater treatment requirements.
  • Social standards based on ILO core conventions (no child labour, no forced labour, fair wages, safe workplace).
  • Annual on-site inspection by IOAS-accredited certifier.
Does NOT
  • Does NOT mean organic. Does NOT cover farming, dyeing chemistry beyond the limit list, or social/labour standards. A 100% conventional cotton t-shirt can be OEKO-TEX 100 certified.
  • Same standard as the EU Leaf — not stricter.
  • Doesn't cover non-textile components (zips, buttons, prints) beyond the chemical-restriction list.

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