Is SMITHSONITE safe to use in EU cosmetics?

SMITHSONITE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

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InventoryRef 5870215/10/2010

SMITHSONITE

Smithsonite is a mineral consisting mainly of zinc-carbonate

SMITHSONITE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 14476-25-6

CAS 14476-25-6PubChem CID 22568670

Smithsonite

Nutrient supplement. Zinc carbonate belongs to the family of Organic Carbonic Acids and Derivatives. These are compounds comprising the organic carbonic acid or a derivative thereof. — Toxin and Toxin Target Database (T3DB)

IUPAC name: zinc carbonic acid

Molecular formula: CH2O3Zn+2
Molecular weight: 127.4 g/mol
Exact mass: 125.929536 Da
Topological polar surface area: 57.5 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 0

Also known as

MonheimiteZinkspatSmithsonite cobaltoanRefChem:183420zinc;carbonic acidFMRLDPWIRHBCCC-UHFFFAOYSA-N

Open full PubChem record PubChem annotations 3D structure image

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

PubChem 2D chemical structure for CAS 3486-35-9

CAS 3486-35-9PubChem CID 19005

Zinc Carbonate

Zinc carbonate appears as a white crystalline solid or powder that is insoluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Used in pharmaceuticals, to make other zinc compounds, as a feed additive. — CAMEO Chemicals

IUPAC name: zinc carbonate

Molecular formula: CO3Zn
Molecular weight: 125.4 g/mol
Exact mass: 123.913886 Da
Topological polar surface area: 63.2 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 0

Also known as

Zinc monocarbonateZincsparCarbonic acid, zinc salt (1:1)Natural smithsoniteZinc carbonate (1:1)CI 77950C.I. 77950K8290PTQ4F

16 more reported names

RefChem:6359zinc(2+) ion carbonate222-477-6226-076-7Basic zinc carbonateEQR32Y7H0MZinc subcarbonateZincum Carbonicumzinc;carbonateZinc Oxide TransparentZinccarbonateHSDB 1048EINECS 222-477-6UNII-K8290PTQ4FZinkcarbonatzinc carbonic acid

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:184449
EPA DTXSID:DTXSID5049817
PubMed:3038000

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for SMITHSONITE

INCI name

SMITHSONITE

Description

Smithsonite is a mineral consisting mainly of zinc-carbonate

Record provenance

Inventory reference: 58702
Imported identity: SMITHSONITE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for SMITHSONITE

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Key data

CAS

3486-35-9 / 14476-25-6

222-477-6

Restriction

—

Function

ASTRINGENT: Contracting and/or tightening the skin.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#26211 · SMITHSONITE

Records sharing a CAS or EC identity

ZINC CARBONATE

Ingredients with overlapping formulation functions

SILTABSORBENT, ASTRINGENT, HUMECTANT

SMILAX CHINA EXTRACTANTI-SEBORRHEIC, ANTIMICROBIAL, ANTIOXIDANT, ASTRINGENT, HAIR CONDITIONING, SKIN CONDITIONING - EMO…

SMILAX CHINA FRUIT EXTRACTANTIMICROBIAL, ANTIOXIDANT, ASTRINGENT, HAIR CONDITIONING, SKIN CONDITIONING - EMOLLIENT

SMILAX CHINA ROOT EXTRACTANTIMICROBIAL, ANTIOXIDANT, ASTRINGENT, HAIR CONDITIONING, SKIN CONDITIONING - EMOLLIENT

SODIUM ALUMANTIPERSPIRANT, ASTRINGENT

SODIUM ALUMINUM CHLOROHYDROXY LACTATEANTIPERSPIRANT, ASTRINGENT, DEODORANT

SODIUM ALUMINUM LACTATEASTRINGENT, BUFFERING

SODIUM MENTHYL SUCCINATEASTRINGENT, DENATURANT, FLAVOURING, ORAL CARE

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How SMITHSONITE appears in the CosIng inventory

The CosIng inventory lists SMITHSONITE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

SMITHSONITE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

SMITHSONITE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, SMITHSONITE carries the following function designation(s):

ASTRINGENT

CAS 3486-35-9 / 14476-25-6 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

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Source note for SMITHSONITE

This page reproduces the CosIng inventory entry for SMITHSONITE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research SMITHSONITE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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Tools & next steps

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