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	COSMOS-Organic / Natural European Union · Tier 2 Trusted	NASAA Certified Organic (Australia) Australia · Tier 2 Trusted	NATRUE European Union · Tier 2 Trusted	Bio-Siegel (Germany) Germany · Tier 1 Gold
What it means	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).	National Association for Sustainable Agriculture, Australia. One of seven Australian Department of Agriculture-approved certifiers. IFOAM-accredited; certifies organic and biodynamic produce.	An EU-based natural-and-organic cosmetics certification. Three grades: Natural, Natural with Organic portion, and Organic.	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.
Scope	Cosmetics	Several categories	Cosmetics	Food
Established	2010	1986	2007	2001
Inspection	Annual on-site by COSMOS-accredited certifier	Annual on-site, NASAA-accredited	Annual third-party audit	Annual on-site by EU-accredited German control body
Residue testing	Risk-based	Risk-based	Risk-based	Risk-based
Guarantees	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.	Compliance with the Australian National Standard for Organic and Bio-Dynamic Produce. Annual on-site inspection. Biodynamic certification option.	Restricted ingredient list (no synthetic fragrances, no silicones, no PEGs). Tiered organic content: Natural with Organic portion ≥70% certified organic; Organic ≥95%. Annual third-party verification.	EU baseline organic (EU 2018/848). Annual on-site inspection by accredited German certifier.
Does NOT	Doesn't certify clinical effectiveness or skin tolerance.	Australia has multiple competing organic certifiers — NASAA is one of seven, not the dominant national mark (that's ACO).	Mark is trademark-protected.	Same standard as the EU Leaf — not stricter.

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