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	Australian Certified Organic Australia · Tier 1 Gold	NASAA Certified Organic (Australia) Australia · Tier 2 Trusted	COSMOS-Organic / Natural European Union · Tier 2 Trusted	Bio-Siegel (Germany) Germany · Tier 1 Gold
What it means	Australia's largest organic certifier, accredited under the Australian National Standard for Organic and Bio-Dynamic Produce. The bud-and-leaf logo is the most-seen organic mark in Australian supermarkets.	National Association for Sustainable Agriculture, Australia. One of seven Australian Department of Agriculture-approved certifiers. IFOAM-accredited; certifies organic and biodynamic produce.	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).	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	Food	Several categories	Cosmetics	Food
Established	2002	1986	2010	2001
Inspection	Annual on-site, ACOS-accredited	Annual on-site, NASAA-accredited	Annual on-site by COSMOS-accredited certifier	Annual on-site by EU-accredited German control body
Residue testing	Risk-based	Risk-based	Risk-based	Risk-based
Guarantees	≥95% organic ingredients. No synthetic pesticides, no GMOs. Annual on-site inspection. Animal welfare and biodynamic-compatible production options.	Compliance with the Australian National Standard for Organic and Bio-Dynamic Produce. Annual on-site inspection. Biodynamic certification option.	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.	EU baseline organic (EU 2018/848). Annual on-site inspection by accredited German certifier.
Does NOT	Australia has no single mandatory organic mark — ACO is the dominant one, but NASAA, OFC, and others also certify.	Australia has multiple competing organic certifiers — NASAA is one of seven, not the dominant national mark (that's ACO).	Doesn't certify clinical effectiveness or skin tolerance.	Same standard as the EU Leaf — not stricter.

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