La
Lanolin Oil
Lanolin OilBarrier
A rich oil from sheep’s wool that softens skin.
What it does
It’s the liquid part of lanolin, the wax sheep make to waterproof their wool, separated from it without chemical change.
The evidence, graded
expert consensusUS safety reviewers (2024) assessed lanolin and 8 ingredients made from it, lanolin oil and acetylated lanolin alcohol among them, which mostly soften skin and condition hair. Lanolin oil was skin-tested in over 300 people with no bad reactions, and acetylated lanolin alcohol caused very little irritation in over 60. The reviewers call lanolin itself a weak allergen, mostly on damaged skin such as leg ulcers or eczema. They judged all 9 safe as used if free of infectious agents.Expert 2024 · Cosmetic Ingredient Review ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
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