What does propylene glycol do for the skin?

Propylene glycol primarily acts as a humectant, meaning it attracts water to the skin, helping to keep it hydrated. It also helps other ingredients penetrate the skin more effectively.

Is propylene glycol safe to use in skincare?

Propylene glycol is considered safe for use in cosmetics at typical concentrations. While some individuals with very sensitive skin may experience irritation, it is generally well-tolerated.

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Propylene Glycol

Propylene glycol is a synthetic organic compound that functions as a humectant, drawing moisture into the skin, and a solvent, helping to dissolve other ingredients. It also acts as a penetration enhancer, improving the delivery of active ingredients. It is a versatile ingredient found in many cosmetic and pharmaceutical products.

NoneHumectant, solvent, penetration enhancerVeganEvidence: High

BenefitModerate 1.5 / 4

Hydration

RiskLow 1 / 4

Irritation

Sensitization

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

Increases skin hydration
Enhances ingredient absorption

Things to watch

May cause irritation in high concentrations or very sensitive skin
Can be sensitizing for some individuals

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Frequently asked questions

What does propylene glycol do for the skin?: Propylene glycol primarily acts as a humectant, meaning it attracts water to the skin, helping to keep it hydrated. It also helps other ingredients penetrate the skin more effectively.
Is propylene glycol safe to use in skincare?: Propylene glycol is considered safe for use in cosmetics at typical concentrations. While some individuals with very sensitive skin may experience irritation, it is generally well-tolerated.