What is potassium myristate used for in skincare?

Potassium myristate is primarily used as a cleansing agent and emulsifier in skincare products. It helps to remove dirt and oil from the skin and contributes to the foaming properties of cleansers.

Is potassium myristate suitable for sensitive skin?

Potassium myristate can be drying and potentially irritating, especially in higher concentrations or in rinse-off products. Individuals with sensitive or dry skin may find it too harsh and should patch test or choose products with milder cleansing agents.

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Potassium Myristate

Potassium myristate is a potassium salt of myristic acid, a fatty acid. It functions as a surfactant, helping to cleanse the skin by creating lather and emulsifying oils and dirt. It can also act as an emulsifying agent, helping to blend oil and water components in a formulation.

NoneSurfactantEvidence: Medium

BenefitMinimal 0.5 / 4

Acne i0.5 / 4

Whether it can help acne-prone skin — reducing clogged pores, excess oil, acne-causing bacteria, inflammation, or breakouts.

RiskLow 1.2 / 4

Irritation i1.2 / 4

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

Barrier disruption i1 / 4

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

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

Effective cleansing agent
Helps create lather
Emulsifies oils and dirt

Things to watch

Can be drying to the skin
Potential for irritation in higher concentrations

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Frequently asked questions

What is potassium myristate used for in skincare?: Potassium myristate is primarily used as a cleansing agent and emulsifier in skincare products. It helps to remove dirt and oil from the skin and contributes to the foaming properties of cleansers.
Is potassium myristate suitable for sensitive skin?: Potassium myristate can be drying and potentially irritating, especially in higher concentrations or in rinse-off products. Individuals with sensitive or dry skin may find it too harsh and should patch test or choose products with milder cleansing agents.