Strontium peroxide

Strontium peroxide in plain language

What it is

Also known as Strontium dioxide · Strontium oxide (SRO2) · Strontium peroxide (Sr(O2)) · Strontium peroxide, 12.3% available oxygen · Strontium peroxide, 98% · Strontiumperoxid

Show all 8 names

UN1509 · UNII-E0830P344P

What it does

Used in cosmetics as a bleaching agent and an oxidising agent.

• Bleaching
• Oxidising
• Bleaching agent

Is it a concern?

High concern: no hazard classifications on record. It is restricted in EU cosmetics.

Why it's flagged

Strontium peroxide is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — restricted

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

• EU Annex III — restricted
• EU restricted in cosmetics

• EU·EC

  Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Rinse-off hair products Maximum concentration: 4.5% (as strontium) Other conditions: All products must meet the hydrogen peroxide release requirements Professional use Conditions of use and warnings: Avoid contact with eyes Rinse eyes immediately if product comes into contact with them For professional use only Wear suitable gloves

  restricted
  View source →

• EU·CosIng·Active2 entries

  • Restriction: III/12 III/64Source →
  • Cosmetics Regulation annex III / ref 64.Source →
• US·EPA·commercial use observedEPA CPDat observed this chemical in 6 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Oxidizing agent, Bleaching agent.

  • EPA CPDat observed this chemical in 6 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Oxidizing agent, Bleaching agent.Source →
• US·FDA·listed in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.

  • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Strontium peroxide. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

• SCCS

  EU Scientific Committee on Consumer Safety

  No SCCS opinion on file.

• CIR

  Cosmetic Ingredient Review (US expert panel)

  No CIR safety assessment on file.