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Researched by Helena DeMaria-Williams

Formula IngredientEmollient/Solvent

Isohexadecane

INCI: Isohexadecane

Isohexadecane is a synthetic, lightweight hydrocarbon derived from the polymerisation and hydrogenation of isobutylene (C4 fraction). It functions as an emollient and solvent, providing a smooth, velvety, non-greasy skin feel. It also acts as a cleansing agent that dissolves dirt, oil, and makeup, and helps stabilise emulsions by acting as a co-emulsifier in the oil phase.

Category

Emollient/Solvent

Irritation Risk

Low

Skin Types

all skin types, normal, dry, combination, sensitive

What does this do in a formula?

emollient, skin smoothing, solvent, velvety skin feel, cleansing, makeup removal, emulsion stabilisation

Is Isohexadecane safe? Key considerations

Can Isohexadecane cause irritation?

Low Risk

Isohexadecane is a chemically inert hydrocarbon with very low irritation potential. The CIR Expert Panel has reviewed isoparaffins and concluded they are safe as used in cosmetics. No EU CosIng Annex II or III restrictions apply.

Does Isohexadecane increase sun sensitivity?

No Risk

Isohexadecane does not increase photosensitivity. No sun protection precautions are required.

Is Isohexadecane safe during pregnancy?

Safe

Isohexadecane is a chemically inert hydrocarbon with no systemic absorption from topical use. No reproductive or developmental concerns are documented.

How does Isohexadecane work?

Isohexadecane is a synthetic, lightweight hydrocarbon derived from the polymerisation and hydrogenation of isobutylene (C4 fraction). It functions as an emollient and solvent, providing a smooth, velvety, non-greasy skin feel. It also acts as a cleansing agent that dissolves dirt, oil, and makeup, and helps stabilise emulsions by acting as a co-emulsifier in the oil phase.