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C20-40 ISOPARAFFIN

CAS 246538-81-8
80

Safety score · 0–100

Good

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

About

C20-40 Isoparaffin is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

C20-40 Isoparaffin is a high molecular weight branched-chain alkane mixture used primarily as a viscosity-controlling agent and emollient in cosmetic formulations. It is not restricted under EU Cosmetics Regulation (EC) No 1223/2009. Due to its longer carbon chain, it has minimal skin penetration potential and is considered low concern for topical use. It is structurally similar to other high-viscosity isoparaffinic hydrocarbons used in long-chain alkane cosmetic ingredients.

Skin benefits

  • Provides substantial occlusive moisturization
  • Acts as a viscosity builder for product texture
  • Creates a protective film on the skin surface

Known concerns

  • May be too heavy for some skin types
  • Limited volatility compared to shorter-chain isoparaffins

References

EU

EU CosIng database

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

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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.