Is Zinc Carbonate safe in cosmetics?
Zinc Carbonate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Zinc Carbonate
Also known as: EINECS 222-477-6, Natural smithsonite, Zincspar, UNII-K8290PTQ4F
INCI: ZINC CARBONATE
Zinc Carbonate (CAS 3486-35-9) is a cosmetic cosmetic ingredient functioning as Opacifying agent. NOAEL 31.52 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted, max 1%. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and food safety data.
View industrial chemical safety profile for CAS 3486-35-9 →
Auto-generated CPSR Part A draft with source citations
Function
Opacifying agent
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
zinc carbonate
InChIKey
FMRLDPWIRHBCCC-UHFFFAOYSA-L
Regulatory Status
EU EU Status
permitted
EU Max Conc.
1%
US US Status
permitted
US Notes
CIR Panel concluded safe in present practices of use and concentration when formulated to be non-irritating
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Zinc Carbonate.
Calculate MoS for your specific formulation with the MoS Calculator.
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for Zinc Carbonate across SCCS product categories, with measured dermal absorption where available.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Additional Ingredient Properties
1 property record from structured ingredient metadata.
mineral_clay
{"cas_number": "3486-35-9", "ingredient_class": "zinc_compound", "chemical_formula": "ZnCO3", "mineral_origin": "natural", "particle_size_range_um": "0.5-10", "surface_area_m2_per_g": "5-20", "crystal_structure": "trigonal", "color_appearance": "white", "opacity": "opaque", "refractive_index": "1.85", "oil_absorption_g_per_100g": "20-50", "water_absorption_capacity": "low", "surface_charge_at_pH_7…
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
Carcinogen Classification
No indication of carcinogenicity to humans (not listed by IARC).
Source: Toxin and Toxin Target Database (T3DB)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Catalyst
Corrosion inhibitor
Flavouring and nutrient
Humectant
Opacifer
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Zinc Carbonate.
Regulatory Flags
fda_food_additive
NOAEL Studies Summary
View details ->Public NOAEL study rows linked to Zinc Carbonate by CAS number or substance name.
Studies
18
Lowest NOAEL
15 mg/kg bw/day
Highest NOAEL
88 mg/kg bw/day
ECHA_REACH_reach_study_results_dossiers_23-05-2023.zip
Known Synonyms
EINECS 222-477-6
Natural smithsonite
Zincspar
UNII-K8290PTQ4F
Chemical Function
Opacifer
Humectant
Corrosion inhibitor
Catalyst
Flavouring and nutrient
Regulatory Lists
Europe; supplements
Europe; food_additive; supplements
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Canada; pharmaceutical
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in food safety data.
SOURCE
EFSA / FDA GRAS
food_additives
Food Safety Data
Same-CAS food additive or FDA GRAS records from the core public database.
Food Name
ZINC CARBONATE
Food Category
fortification
Frequently Asked Questions
Is Zinc Carbonate allowed in the EU?
Zinc Carbonate EU regulatory status: permitted. Maximum allowed concentration: 1%. This is based on EU Regulation 1223/2009 and its amendments.
What does Zinc Carbonate do in cosmetics?
Zinc Carbonate functions as: Opacifying agent. It is classified as a cosmetic ingredient in our database. CAS number: 3486-35-9.
Is Zinc Carbonate used outside cosmetics?
Zinc Carbonate also appears in industrial chemical safety and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Zinc Carbonate compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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