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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
COSMOS-Organic / Natural logo
COSMOS-Organic / Natural
European Union · 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 leading certification for organic cosmetics in Europe. Two grades: COSMOS Organic (≥95% organic agricultural ingredients) and COSMOS Natural (no organic minimum, but the same restricted-ingredient list).
ScopeTextilesFoodCosmetics
Established199220012010
InspectionAnnual on-site + lab testing of finished productsAnnual on-site by EU-accredited German control bodyAnnual on-site by COSMOS-accredited certifier
Residue testingRequired (this is the entire point)Risk-basedRisk-based
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.
  • COSMOS Organic: ≥95% organic agricultural ingredients.
  • COSMOS Natural: minimum natural-origin ingredients with banned synthetic restrictions.
  • No GMOs, no parabens, no PEGs, no synthetic fragrances, no SLS/SLES.
  • Biodegradability requirements.
  • Annual on-site audit.
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 certify clinical effectiveness or skin tolerance.

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