Dipentaerythrityl Pentaisononanoate

What is Dipentaerythrityl Pentaisononanoate?

Dipentaerythrityl Pentaisononanoate is a synthetic polyester ester derived from dipentaerythritol and isononanoic acid, commonly used in color cosmetics like lipsticks and foundations, as well as skincare formulations. It belongs to the category of emollient esters that provide a dry, non-greasy feel while delivering lubrication. In products, it functions by forming a thin film on the skin to mimic natural lipids, reducing friction for smoother application and improving spreadability. As a viscosity controller, it stabilizes emulsions and adjusts thickness for optimal texture. Its branched structure ensures compatibility with pigments and oils, preventing separation and enhancing product stability without heaviness. This ingredient supports a velvety finish in makeup and gentle conditioning in creams, making it suitable for daily use across various formulations.

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:

Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Provides a smooth, non-oily feel by filling skin imperfections and improving slip during application.

Helps retain moisture by acting as a barrier when combined with other ingredients.

Enhances product stability and texture for better usability in creams 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
People with dry or rough skin seeking lightweight softening.
Anyone with rare allergies to fatty acid esters.
Individuals using makeup for a seamless, velvety application.
People preferring fully natural ingredients only.
Those preferring stable, easy-to-spread formulations.
Those sensitive to synthetic emollients, though uncommon.

Safety Notes

  • Rated low hazard by EWG with scores of 1 across categories.
  • Deemed safe for cosmetic use by Cosmetic Ingredient Review assessments.

Frequently Asked Questions about Dipentaerythrityl Pentaisononanoate

What is Dipentaerythrityl Pentaisononanoate?

A synthetic ester used as an emollient and viscosity adjuster in skincare and makeup for a smooth, dry-touch feel.

Is it safe for daily use?

Yes, it carries a low EWG hazard rating and is considered safe in cosmetics by expert reviews.

Does it cause irritation?

It has low irritation potential based on safety assessments, suitable for most skin types.