Is hydrogen peroxide safe to use on skin?

While hydrogen peroxide has antiseptic properties, it is generally not recommended for routine use on skin wounds as it can damage healthy skin cells and impair healing. It is best used under professional guidance or in very dilute, specific formulations.

Can hydrogen peroxide whiten teeth?

Yes, hydrogen peroxide is a common active ingredient in many tooth whitening products due to its ability to break down stains. However, overuse or high concentrations can lead to tooth sensitivity and gum irritation.

Home › Ingredients › Hydrogen Peroxide

Hydrogen Peroxide

Hydrogen peroxide is a chemical compound used as an antiseptic, disinfectant, and bleaching agent. In cosmetics, it is primarily used in hair coloring products to lighten hair and in some oral care products for its antimicrobial properties. Its strong oxidizing nature requires careful formulation and use.

Antiseptic, oxidizing agent, bleaching agentVegan

BenefitMinimal 1 / 4

RiskHigh 2.5 / 4

Eye irritation i3.5 / 4

Whether it may sting or irritate around the eyes. Relevant for sunscreens, fragrances, acids, surfactants, and volatile ingredients.

Irritation i3 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Barrier disruption i2 / 4

Whether it can weaken or damage the skin barrier — harsh surfactants, strong exfoliants, high alcohol content, or overuse-prone actives.

Sensitization i1.5 / 4

Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.

Systemic exposure i1 / 4

Whether it has meaningful potential to be absorbed into the body at levels that may matter biologically. Most cosmetic ingredients score low unless there is known concern or high exposure.

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

antiseptic properties
bleaching/lightening agent
disinfectant

Things to watch

irritation at high concentrations
potential for tissue damage
sensitization

See how this matches your skin

Find out exactly what you put onto your skin. Scan any product before you buy. Free and independent — no brand is paying us. Available on Android and iOS.

QR code linking to the SpottyLabs app on Google Play

QR code linking to the SpottyLabs app on the App Store

Products with Hydrogen Peroxide

Go Blonder Lightening Spray

2.5/ 53/9/10

Browse all products →

Frequently asked questions

Is hydrogen peroxide safe to use on skin?: While hydrogen peroxide has antiseptic properties, it is generally not recommended for routine use on skin wounds as it can damage healthy skin cells and impair healing. It is best used under professional guidance or in very dilute, specific formulations.
Can hydrogen peroxide whiten teeth?: Yes, hydrogen peroxide is a common active ingredient in many tooth whitening products due to its ability to break down stains. However, overuse or high concentrations can lead to tooth sensitivity and gum irritation.