C10-11 Isoparaffin

What is C10-11 Isoparaffin?

C10-11 Isoparaffin consists of highly branched, saturated hydrocarbons with 10 to 11 carbon atoms, produced synthetically from petroleum gases through a refining process that ensures purity. It appears as a clear, colorless, odorless liquid commonly incorporated into cleansing products, moisturizers, sunscreens, and makeup formulations. In cosmetics, it primarily acts by dissolving other oil-soluble ingredients, facilitating even distribution and enhancing product spreadability. As a viscosity controlling agent, it helps maintain the desired texture, preventing separation and improving stability without adding greasiness. Its volatile nature allows quick evaporation, leaving a non-oily finish on the skin. Regulatory bodies like the Cosmetic Ingredient Review have assessed it safe for use in leave-on and rinse-off products at typical concentrations.

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.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Enhances product texture by controlling viscosity for smooth application.

Serves as an efficient solvent to dissolve and deliver active ingredients.

Provides a lightweight, non-greasy feel with quick evaporation.

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 seeking non-comedogenic formulas for daily cleansers.
People with known hypersensitivity to hydrocarbons.
Those preferring lightweight moisturizers without residue.
Those preferring completely natural or plant-derived ingredients only.
Users of oil-free sunscreens and makeup for better blendability.
Individuals avoiding petroleum-derived components in routines.

Safety Notes

  • Rated low hazard (EWG score 1) with minimal risk of irritation.
  • Deemed safe by Cosmetic Ingredient Review for cosmetic use.

Frequently Asked Questions about C10-11 Isoparaffin

Is C10-11 Isoparaffin comedogenic?

No, it has a comedogenic rating of 0, making it suitable for acne-prone skin.

What roles does it play in products?

It functions as a solvent to dissolve ingredients and a viscosity controller for optimal texture.

Is it safe for sensitive skin?

It shows low irritation potential per safety assessments from regulatory reviews.