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Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate

What Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate is & what it does

A skin-lipid-mimicking ester that reinforces the barrier, conditions, and helps lock in moisture. It leaves a smooth, comfortable feel.

What does Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate do in skincare?

This ingredient is an ester formed from dimer dilinoleic acid and a blend of fatty alcohols and a plant sterol. In formulas it works as an emollient and skin-conditioning agent, giving products a rich, cushiony feel and helping soften the skin surface. Esters like this also support texture and spreadability.

Is Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate comedogenic?

There is limited published data specifically rating this complex ester for comedogenicity, so a firm rating cannot be given. It is a large, heavy emollient ester, and rich oily ingredients can feel occlusive on the skin. If you are prone to clogged pores, patch testing and watching how your skin responds is sensible.

Is Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate vegan?

The fatty alcohols and the dimer dilinoleate portion are typically plant or synthetic derived, and the sterol is usually plant based (phytosteryl), so the ingredient is often suitable for vegan products. Sourcing can vary between suppliers, however. For a certified vegan product, rely on the brand's stated claims.

Sunscreens with Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate

We rate 6 sunscreens that contain it:

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