Sodium Perborate

Benefits
Lightening

What is Sodium Perborate?

Sodium perborate is a synthetic inorganic compound, specifically the sodium salt of perboric acid with the formula NaBO3·nH2O, appearing as a white, crystalline powder. In cosmetics, it belongs to the category of oral care ingredients found in toothpastes and mouthwashes. It works by decomposing in the presence of water to release active oxygen and hydrogen peroxide, which oxidize organic stains on tooth enamel, aiding in surface lightening without mechanical abrasion. This controlled release ensures stability in dry or paste formulations until use. Regulatory approvals limit its concentration in oral products to balance efficacy and safety, distinguishing it from stronger industrial bleaches. Its role supports hygiene functions through oxidative cleaning action on dental surfaces.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3-4 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Oral health care drug
A regulated active used in oral products to treat or help prevent a specific condition (e.g., caries, gingivitis), subject to local OTC drug rules.
Oxidizing agent
Provides controlled oxidation for functions like hair bleaching/dye development or stain breakdown; must be balanced for stability and safety in the formula.
Oral care agent
Supports oral hygiene performance (cleaning, freshening, plaque control, sensitivity support) in toothpaste, mouthwash, and related products.

Benefits

Supports lightening of extrinsic tooth stains via oxidation.

Contributes to oral hygiene in toothpastes and mouthwashes.

Provides peroxide-based action for stain breakdown in oral care.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with mild surface discoloration on teeth.
Those with sensitive oral mucosa or gums.
Users of whitening oral care routines.
Individuals sensitive to boron compounds.
People seeking non-abrasive oxidative cleaning in dental products.
People preferring abrasive-free or peroxide-free oral care.

Safety Notes

  • EWG rates it 3-4, indicating moderate concerns including use restrictions.
  • Formulated for oral use under regulatory concentration limits.

Frequently Asked Questions about Sodium Perborate

What does sodium perborate do in products?

It acts as an oxidizing agent, releasing peroxide to break down tooth stains in oral care items.

Is it safe for daily oral use?

Safe in regulated concentrations in toothpastes, rated moderately by EWG with formulation safeguards.

Can it lighten teeth?

Aids in lightening surface stains through oxidative action in compatible oral products.