C11-13 Isoparaffin

What is C11-13 Isoparaffin?

C11-13 Isoparaffin consists of branched, saturated hydrocarbons containing 11 to 13 carbon atoms, produced synthetically through petrochemical processes. This clear, odorless liquid functions mainly as a solvent and emollient in skincare products like moisturizers, sunscreens, foundations, and hair conditioners. It dissolves oil- and water-based components, ensuring even mixing and stable formulations. By lowering viscosity, it improves product flow and spreadability during application. Its quick-evaporating property delivers a silky, matte finish without residue, enhancing user experience in oil-free or lightweight textures. Commonly found in water-in-oil emulsions, it stabilizes active ingredients and prevents separation, supporting consistent performance across various cosmetic categories.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Solvent
Dissolves and carries other ingredients, helping control viscosity, evaporation rate, and delivery of actives in both water- and oil-based systems.

Benefits

Helps dissolve and evenly distribute other ingredients for stable formulations.

Provides a lightweight, quick-drying feel that enhances product spreadability.

Supports non-greasy textures ideal for everyday skincare and makeup.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with oily or combination skin seeking non-comedogenic options.
Those with rare sensitivities to hydrocarbon-based ingredients.
Users preferring smooth-applying moisturizers and primers.
Individuals strictly avoiding synthetic emollients.
People with normal skin looking for efficient ingredient delivery.
People preferring entirely plant-derived cosmetic formulations.

Safety Notes

  • Considered safe for cosmetic use by expert reviews like CIR.
  • Shows low potential for irritation or sensitization in formulations.

Frequently Asked Questions about C11-13 Isoparaffin

What is C11-13 Isoparaffin?

A synthetic blend of C11-C13 branched hydrocarbons used as a solvent and emollient in cosmetics.

Is it safe for sensitive skin?

Evidence from reviews indicates low irritation potential in typical use.

Does it cause breakouts?

It has a comedogenic rating of 0, making it suitable for acne-prone skin.