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Emollient

ISOOCTYL TALLATE

CAS -
65

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

Tall oil fatty acids esterified with isooctyl alcohol — a light emollient. Quality depends on removing rosin-acid residues.

Isooctyl tallate is an ester of branched-chain isooctyl alcohol with the fatty acid fraction of tall oil (mainly oleic and linoleic acid, recovered as a kraft pulping byproduct). It functions as a light, spreadable emollient. Like other tallate esters, the main quality concern is residual rosin (abietic-type) acids, which are known contact sensitizers; properly refined cosmetic grades should have these below detection. No dedicated CIR monograph, but related fatty-acid esters have broadly favorable safety records. The ingredient is also used heavily outside cosmetics as a plasticizer and lubricant.

Function

SKIN CONDITIONING - EMOLLIENT, PLASTICISER, SKIN CONDITIONING, SOLVENT

Skin benefits

  • Lightweight emollient
  • Renewable fatty acid source
  • Good spreadability

Known concerns

  • Rosin-acid contact sensitization potential
  • Branched alcohol has thinner data
  • Variable source composition

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related emollients

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.