Description
Cetostearyl alcohol, also known as cetearyl alcohol or cetylstearyl alcohol, is a mixture of fatty alcohols, primarily consisting of cetyl and stearyl alcohols. It’s a waxy, white solid, often found in the form of flakes.Cetostearyl alcohol is a common ingredient in a wide range of cosmetic, pharmaceutical, and personal care products. It’s classified as a “fatty alcohol,” which is different from “drying alcohols” like ethanol. While ethanol can be harsh and drying to the skin, fatty alcohols are known for their emollient and moisturizing properties.
Chemical & Physical Properties
| Property | Specification / Value |
|---|---|
| Chemical Formula | CH₃(CH₂)ₙCH₂OH, where n typically ranges from 14 to 16 |
| Appearance | White, waxy solid with a mild odor |
| Melting Point | 48–56 °C |
| Boiling Point | ~330 °C |
| Solubility | Insoluble in water; soluble in oils and organic solvents |
Uses
- Emulsifier and Emulsion Stabilizer: It helps to mix and stabilize oil-based and water-based ingredients that would normally separate. This is crucial for creating smooth, uniform products like creams, lotions, and conditioners.
- Thickening Agent: It increases the viscosity of a product, giving it a richer, more desirable texture.
- Emollient: It softens and smooths the skin and hair by forming a protective layer that helps prevent moisture loss. This makes it a popular ingredient in moisturizers, conditioners, and hair masks.
- Foam Booster: It can enhance the foaming properties of products like shampoos.
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