The Lab
Specimen No. 0143
ClearedSyntheticsolventemollient

Isododecane

isododecane · 2,2,4,4,6-pentamethylheptane · branched c12 hydrocarbon

A lightweight hydrocarbon solvent and emollient that provides a non-greasy, fast-absorbing skin feel. The CIR confirmed safety at concentrations used in cosmetics. Produces a matte or weightless finish and is commonly used in long-wear makeup formulations.

low confidence
Researched April 18, 2026

Concerns

  • Rare contact dermatitis in highly sensitive individuals
  • Petroleum-derived

Commonly found in

PrimersFoundationsConcealersSetting spraysLip products

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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