Isostearyl Alcohol
What is Isostearyl Alcohol?
Isostearyl Alcohol is a branched-chain fatty alcohol primarily composed of C18 carbon atoms, obtained through hydrogenation of isostearic acid derived from vegetable oils like olive or synthetic processes. It belongs to the category of emollient ingredients in cosmetics, commonly found in moisturizers, lip products, and hair conditioners. Chemically, its long hydrocarbon chain and hydroxyl group enable it to mimic skin's natural lipids, providing a lubricious feel. In formulations, it functions by adhering to the skin surface to reduce water loss, improve slip for even application, and modify viscosity to stabilize emulsions and suspensions, resulting in smoother, more spreadable textures without greasiness.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Provides softening effect by smoothing skin's surface.
Enhances product spreadability and texture.
Supports moisture retention when combined with other 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 |
|---|---|
| People with dry or rough skin seeking gentle softening. | Individuals with rare allergies to fatty alcohols. |
| Those preferring non-comedogenic emollients. | Those sensitive to branched-chain emollients. |
| Users of creams and lotions for better application. | People preferring anhydrous formulations. |
Safety Notes
- Rated low hazard by EWG with scores of 1.
- Non-comedogenic with rating of 0.
Frequently Asked Questions about Isostearyl Alcohol
What is Isostearyl Alcohol used for?
It serves as an emollient, viscosity controller, and skin conditioner in creams and lip products.
Is it safe for sensitive skin?
Yes, it has a low EWG rating and shows minimal irritation potential.
Does it cause breakouts?
No, its comedogenic rating is 0, making it unlikely to clog pores.