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Isomerized Linoleic Acid is a cosmetic ingredient used in skincare formulas.
Summary
0 products tracked
Use this as orientation, not a prediction of individual tolerance.
May be useful for
The catalog does not link this ingredient to a skin type. Look at the whole product and how you will use it.
Who should be careful
The catalog does not say who should avoid this ingredient. It cannot judge a health need, pregnancy, or allergy.
An ingredient list confirms presence and order—not exact concentration, finished-formula performance, or personal comfort.
Provenance and review status are editorial metadata and are not published here — these are the records the profile is built from.
This is not medical advice. see methodology →
Official label names and chemical registry identifiers, with each available source kept explicit.
Claims, limitations, sources, and tracked research are kept together so the evidence can be checked in context.
What it does
The catalog calls its main role “film forming.” In plain language, it leaves a thin layer that can change feel, wear, or water loss. The catalog lists 1 other possible role for this ingredient. These labels do not prove that it treats a skin condition.
Evidence strength
Benefits
Side effects
Related ingredients, common formula neighbors, naming, and catalog context—kept separate from evidence and personal-fit guidance.
Similar ingredients
related by documented function or concern
Isomerized Linoleic Acid is a cosmetic ingredient used in skincare formulas. The catalog calls its main role “film forming.” In plain language, it leaves a thin layer that can change feel, wear, or water loss. The catalog lists 1 other possible role for this ingredient. These labels do not prove that it treats a skin condition.
Malassezia is a lipid-dependent yeast — the founding lab study (Wilde & Stewart, 1968) found it won't grow unless fatty acids longer than about C10 are present, and a 2025 study testing individual fatty acids up to C24 confirmed growth across that window, though very unevenly: palmitic acid (C16) and oleic acid supported the most efficient growth while several others (myristic, arachidic, behenic, lignoceric) only supported weak, limited growth. So 'C11–C24' is a reasonable summary of the tested range, not a claim that every fatty acid in it feeds the yeast equally well — oleic and palmitic are the best-evidenced triggers; several others are flagged mainly for being in the same structural family. Separately, Malassezia's own lipases release oleic acid from sebum, and free oleic acid has been shown to disrupt keratinocyte differentiation and trigger inflammation — a real mechanism, though it describes what the yeast does to sebum rather than a direct test of each cosmetic ingredient on skin.
Isomerized Linoleic Acid appears in 0% of the 7,063 decoded products in our catalog (1 product).
On Korean labels, Isomerized Linoleic Acid is listed as 아이소머라이즈드리놀레익애씨드.
No products in our catalog list this ingredient yet.
Compiled from the EU CosIng database (ref 56745) · snapshot 16 June 2026. The written profile above was human-reviewed; see its cited sources.