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Ingredient guide
Oleoyl Phytosphingosine
In short
A C18:1 unsaturated ceramide that adds flexibility to the skin’s lipid layers. It supports comfortable hydration and complements more rigid saturated ceramides.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Barrier · Hydration
Skin type
Dry · Sensitive
Best used
Anytime
What it is
Mono-unsaturated C18:1 ceramide NP-type variant; the cis-oleoyl chain imparts greater fluidity to lipid bilayers than the saturated C18 stearoyl analogue; minor component of the native stratum corneum ceramide profile; incorporated into broad-spectrum ceramide complex formulations to provide unsaturated-chain coverage alongside the more abundant saturated ceramides.
Also found as
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Common questions
It provides subtle fluidity to the lipid structure, helping maintain a balanced barrier and steady moisture levels.
It works well for dry and sensitive skin that benefits from a mix of saturated and unsaturated ceramides.
It is added to broader ceramide complexes to mimic the natural diversity of skin lipids.
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Personal guidance only · For clinical concerns, see a dermatologist.