Isostearyl Behenate

What is Isostearyl Behenate?

Isostearyl Behenate is a wax-like ester formed by combining isostearyl alcohol, a branched-chain fatty alcohol derived from isostearic acid, with behenic acid, a long-chain saturated fatty acid typically obtained from vegetable sources like rapeseed oil. In cosmetic formulations, it serves primarily as an emollient and skin conditioner, commonly appearing in lipsticks, creams, lotions, and makeup products. It functions by creating a smooth, lubricious film on the skin that reduces friction, improves product glide, and supports the skin's lipid barrier without greasiness. Its stable, non-oxidizing structure allows it to thicken emulsions and stabilize formulations, providing a velvety after-feel while aiding in moisture retention through occlusion.

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:

Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
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.

Benefits

Softens and smooths skin texture for a supple feel.

Supports skin's natural barrier to minimize moisture loss.

Enhances spreadability and luxurious texture in creams and lip products.

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 chapped skin seeking hydration.
Those with allergies to fatty acid esters.
Individuals preferring non-greasy emollients in daily routines.
People sensitive to behenic acid derivatives.
Users of long-wear makeup needing smooth application.
Individuals preferring simpler, minimal-ingredient products.

Safety Notes

  • Generally recognized as safe for topical cosmetic use.
  • Low potential for comedogenicity, suitable for acne-prone skin.

Frequently Asked Questions about Isostearyl Behenate

What is Isostearyl Behenate used for?

It acts as an emollient and skin conditioner to soften skin and improve product texture in cosmetics.

Is it safe for daily use?

Yes, it is considered safe with low hazard ratings for topical application.

Does it cause breakouts?

No, it has a comedogenic rating of 0, making it unlikely to clog pores.