Is Magnesium Peroxide safe in cosmetics?
Magnesium Peroxide has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.
Poor
Cosmetic Ingredient
Magnesium Peroxide
Also known as: UN 1476 (DOT), Peroxyde de magnesium, EINECS No.: 215-627-7
INCI: MAGNESIUM PEROXIDE
Magnesium Peroxide (CAS 1335-26-8) is a cosmetic cosmetic ingredient functioning as Oxidising agent, oral care agent (tooth whitening). EU Regulation 1223/2009 status: permitted. 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 1335-26-8 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Magnesium Peroxide is classified GHS Danger (H302, H314, H335, H272, H271) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Oxidising agent, oral care agent (tooth whitening)
Safety Rating
POOR
Chemistry & Identifiers
IUPAC Name
magnesium peroxide
InChIKey
SPAGIJMPHSUYSE-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — used primarily in oral care/tooth whitening products; no specific CFR cosmetic prohibition
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Magnesium Peroxide.
Calculate MoS for your specific formulation with the MoS Calculator.
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
Skin Eye Respiratory Irritation
... severe irritant to the eyes, skin, and mucous membranes.
Source: Hazardous Substances Data Bank (HSDB)
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Oxidizing agent
Expert Verdict
Expert safety assessment and concern-level summary for Magnesium Peroxide.
Known Synonyms
UN 1476 (DOT)
Peroxyde de magnesium
EINECS No.: 215-627-7
Chemical Function
Oxidizing agent
Regulatory Lists
Canada; Personal care; Substances in PCP - Canada (4/2014)
Canada; pharmaceutical
Frequently Asked Questions
Is Magnesium Peroxide allowed in the EU?
Magnesium Peroxide EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Magnesium Peroxide do in cosmetics?
Magnesium Peroxide functions as: Oxidising agent, oral care agent (tooth whitening). It is classified as a cosmetic ingredient in our database. CAS number: 1335-26-8.
Is Magnesium Peroxide used outside cosmetics?
Magnesium 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 Magnesium Peroxide have different safety status in cosmetics vs industrial chemicals?
Magnesium Peroxide is classified GHS Danger (H302, H314, H335, H272, H271) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check Magnesium Peroxide compliance across multiple jurisdictions:
Ingredient Decoder
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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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