Is Calcium Peroxide safe in cosmetics?
Calcium Peroxide has a safety rating of "MODERATE" in our database. EU status: prohibited. US status: permitted.
Moderate
Cosmetic Ingredient
Calcium Peroxide
Also known as: Calcium peroxide (Ca(O2)), EINECS 215-139-4, UNII-7FRO2ENO91, Kalziumperoxid, cyc-CaO2
INCI: CALCIUM PEROXIDE
Calcium Peroxide (CAS 1305-79-9) is a cosmetic cosmetic ingredient functioning as Oxidizing agent, bleaching agent. EU Regulation 1223/2009 status: prohibited, max 12%. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 1305-79-9 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Calcium Peroxide is prohibited in EU cosmetics at max 12% but has active industrial GHS classifications (H272, H318, H302, H314, H335, H315, H319).
Source: Cosmetics: ingredients.eu_status/eu_max; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Oxidizing agent, bleaching agent
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
calcium peroxide
InChIKey
LHJQIRIGXXHNLA-UHFFFAOYSA-N
Regulatory Status
EU EU Status
prohibited
EU Max Conc.
12%
US US Status
permitted
US Notes
Adequate at permitted H₂O₂-equivalent concentrations. SCCS opinions support MoS ≥100 for H₂O₂ at Annex III limits.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Calcium Peroxide.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
1 property record from structured ingredient metadata.
hair_dye
{"cas_number": "1305-79-9", "ingredient_class": "bleaching_agent", "chemical_class": "other", "molecular_weight_Da": "72.08", "color_result_on_hair": "Mild lightening", "shade_range": "blonde", "primary_function": "oxidizer", "requires_developer": "no", "lift_capability_levels": "1-2", "permanence": "permanent", "sensitization_risk": "moderate", "hair_damage_level": "moderate", "vegan": "yes", "ty…
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
Skin Eye Respiratory Irritation
Contact can severely irritate and may burn the skin and eyes. Exposure can irritate the eyes, nose, and throat. Higher levels can irritate the lungs ... | /Dust is/ irritating to eyes, nose, and throat. /Solid is/ irritating to skin and eyes. | Irritating in concentrated form.
Source: Hazardous Substances Data Bank (HSDB)
Regulatory (1)
JECFA Evaluation
CALCIUM PEROXIDE | 1965 | Caution: Powerful oxidizing substance. | NMRS 40/TRS 339-JECFA 9/15 | NOT PREPARED
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Chelating agent
Filler
Food preservative
Oxidizing agent
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Calcium Peroxide.
Regulatory Flags
fda_food_additive
Known Synonyms
Calcium peroxide (Ca(O2))
EINECS 215-139-4
UNII-7FRO2ENO91
Kalziumperoxid
cyc-CaO2
Chemical Function
Oxidizing agent
Chelating agent
Filler
Food preservative
Regulatory Lists
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Calcium Peroxide allowed in the EU?
Calcium Peroxide EU regulatory status: prohibited. Maximum allowed concentration: 12%. This is based on EU Regulation 1223/2009 and its amendments.
What does Calcium Peroxide do in cosmetics?
Calcium Peroxide functions as: Oxidizing agent, bleaching agent. It is classified as a cosmetic ingredient in our database. CAS number: 1305-79-9.
Is Calcium Peroxide used outside cosmetics?
Calcium Peroxide also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does Calcium Peroxide have different safety status in cosmetics vs industrial chemicals?
Calcium Peroxide is prohibited in EU cosmetics at max 12% but has active industrial GHS classifications (H272, H318, H302, H314, H335, H315, H319).
Compliance Tools
Check Calcium Peroxide 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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