Is hydroxide safe in skincare products?

Yes, when used in cosmetic formulations, hydroxide is present in very low concentrations to adjust pH. At these levels, it is considered safe and non-irritating.

Why is hydroxide used in cosmetics?

Hydroxide is primarily used to raise the pH of a product, making it less acidic. This is important for product stability, efficacy of other ingredients, and to prevent skin irritation.

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Hydroxide

Hydroxide, often in the form of sodium hydroxide or potassium hydroxide, is a strong alkaline ingredient used in cosmetics to adjust the pH of a product. It is crucial for ensuring the product's stability and effectiveness, as well as preventing irritation from overly acidic formulations. While strong in concentrated form, it is used in very small, controlled amounts in finished products.

PH adjusterVegan

BenefitNone 0 / 4

RiskLow 1 / 4

Irritation i1 / 4

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

Rated by SpottyLabs' ingredient methodology, independent of brands.

Things to watch

can be irritating in high concentrations

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Frequently asked questions

Is hydroxide safe in skincare products?: Yes, when used in cosmetic formulations, hydroxide is present in very low concentrations to adjust pH. At these levels, it is considered safe and non-irritating.
Why is hydroxide used in cosmetics?: Hydroxide is primarily used to raise the pH of a product, making it less acidic. This is important for product stability, efficacy of other ingredients, and to prevent skin irritation.