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Description
Cetyl Stearyl Alcohol (30/70) is a specific grade of Cetearyl Alcohol consisting of approximately 30% cetyl alcohol (C16) and 70% stearyl alcohol (C18). This defined ratio provides enhanced thickening efficiency, improved emulsion stability, and a firmer consistency compared with grades containing higher levels of cetyl alcohol. It is widely used as an emollient, viscosity modifier, co-emulsifier, consistency agent, and stabilizer in cosmetic, pharmaceutical, and personal care formulations.
Because stearyl alcohol possesses a higher melting point than cetyl alcohol, the 30/70 blend produces creams and lotions with greater body, improved structural integrity, and enhanced long-term stability. The ingredient contributes a smooth, creamy texture while reducing the greasy feel often associated with heavier waxes. It also improves spreadability and helps maintain the integrity of emulsions during storage.
Cetyl Stearyl Alcohol (30/70) is commonly incorporated into moisturizing creams, body lotions, pharmaceutical ointments, conditioners, hair masks, sunscreens, cleansing products, and topical medicinal formulations where stable viscosity and elegant sensory properties are required.
CAS Number
CAS Number: 67762-27-0
Synonyms
Physical Properties
Cetyl Stearyl Alcohol (30/70) is supplied as white flakes, pellets, beads, or waxy granules with little or no odor. Owing to its relatively high stearyl alcohol content, it possesses a slightly higher melting range and provides increased firmness compared with balanced Cetearyl Alcohol grades.
Typical characteristics include:
Its higher stearyl alcohol content makes it particularly suitable for products requiring rich consistency.
Chemical Properties
Cetyl Stearyl Alcohol (30/70) consists of saturated long-chain primary fatty alcohols with excellent chemical stability. The hydroxyl functional group provides mild hydrophilic character, while the hydrocarbon chains contribute excellent emollient and thickening properties.
Important chemical characteristics include:
Its saturated molecular structure provides excellent resistance to oxidation and hydrolysis under normal formulation conditions.
Manufacturing Process
Commercial Cetyl Stearyl Alcohol (30/70) is manufactured from natural vegetable oils through catalytic hydrogenation followed by fractional distillation and controlled blending.
Typical manufacturing stages include:
The manufacturing process ensures a consistent composition and predictable formulation performance.
Mechanism of Action
Cetyl Stearyl Alcohol (30/70) enhances formulation stability by forming organized lamellar structures within emulsions. These structures strengthen the continuous phase, increase viscosity, and prevent oil droplet coalescence.
Its primary mechanisms include:
In hair care products, it forms a conditioning film on the hair shaft that reduces friction and improves softness.
Applications
Cetyl Stearyl Alcohol (30/70) is extensively used in various industries.
Cosmetic Industry
Hair Care
Pharmaceutical Industry
Personal Care
