Ph
Phytosphingosine
PhytosphingosineBarrier
A sphingolipid — the same family of fats that builds the skin barrier — used in small amounts to support a formula's barrier-friendly profile.
What it does
Phytosphingosine is a sphingolipid, a class of lipid the skin's outer barrier is partly built from. In formulas it is used at low levels as a barrier-supporting and conditioning component, and it has mild preservative-boosting activity. It sits alongside ceramides and fatty acids in barrier-focused products as a structural lipid rather than a treatment active.
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
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