What is the primary function of Sodium Metasilicate in cosmetic products?

Sodium Metasilicate is primarily used as an alkaline agent to adjust the pH of formulations and as a corrosion inhibitor, particularly in products like hair dyes or strong cleansers.

Is Sodium Metasilicate safe for skin?

Due to its strong alkaline nature, Sodium Metasilicate can be irritating to the skin and eyes, especially in higher concentrations. Its use in cosmetics is carefully controlled to minimize potential risks.

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Sodium Metasilicate

Sodium Metasilicate is an inorganic salt used primarily as an alkaline agent and corrosion inhibitor. In cosmetics, it can be found in products like hair dyes or cleansers to adjust pH and enhance cleaning. It is a strong alkaline substance and should be handled with care.

Alkaline agentVegan

BenefitNone 0 / 4

RiskModerate 2 / 4

Irritation i2 / 4

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

Systemic exposure i0.5 / 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.

Sensitization i0.5 / 4

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

Rated by SpottyLabs' ingredient methodology, independent of brands.

Things to watch

can be irritating to skin and eyes
strong alkaline agent

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Frequently asked questions

What is the primary function of Sodium Metasilicate in cosmetic products?: Sodium Metasilicate is primarily used as an alkaline agent to adjust the pH of formulations and as a corrosion inhibitor, particularly in products like hair dyes or strong cleansers.
Is Sodium Metasilicate safe for skin?: Due to its strong alkaline nature, Sodium Metasilicate can be irritating to the skin and eyes, especially in higher concentrations. Its use in cosmetics is carefully controlled to minimize potential risks.