Diisostearate

What is Diisostearate?

Diisostearate is derived from diisostearic acid, a dicarboxylic acid formed by dimerizing isostearic acid sourced from tall oil fatty acids or vegetable oils like oleic acid. This branched-chain structure gives it surfactant properties ideal for cosmetic use. Primarily functioning as an emulsifying agent, it reduces surface tension to mix immiscible oil and water phases, creating stable emulsions in products such as lotions, creams, deodorants, and sunscreens. This stabilization prevents phase separation, improves spreadability, and enhances texture for a smooth application. Its lipophilic nature allows effective incorporation into oil-based or anhydrous formulations, supporting consistent performance across various personal care items without altering skin feel significantly.

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

Benefits

Supports stable product formulations for even texture

Non-comedogenic profile suits various skin types

Contributes to effective blending of ingredients

Who It's For

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

Who May Benefit Who Should Avoid
Users of emulsion-based moisturizers and lotions
Those with rare allergies to fatty acid derivatives
Individuals seeking mild surfactants in daily routines
Individuals sensitive to emulsifiers in general
People with non-sensitive skin needing product stability
People avoiding synthetic-derived cosmetic ingredients

Safety Notes

  • Low hazard rating from cosmetic safety databases
  • Minimal reports of adverse effects in formulations

Frequently Asked Questions about Diisostearate

What does diisostearate do in skincare?

It acts as an emulsifying surfactant to blend oil and water, stabilizing creams and lotions.

Is diisostearate safe for daily use?

It carries a low safety concern from assessments, suitable in typical cosmetic concentrations.

Does diisostearate clog pores?

It has a comedogenic rating of 0, indicating low likelihood of pore blockage.