Description
Stearyl alcohol, or 1-octadecanol, is an organic compound classified as a saturated fatty alcohol with the formula CH3(CH2)16CH2OH. It takes the form of white granules or flakes, which are insoluble in water. It has a wide range of uses as an ingredient in lubricants, resins, perfumes, and cosmetics.
Stearyl alcohol can be used in personal care products as an emollient, helping to nourish skin and hair, leaving them soft and smooth. This ingredient also has emulsion stabilizing properties, and can be used to help balance and add structure to oil-water formulations.
Stearyl Alcohol is also fatty alcohol that acts similarly to cetyl alcohol. They both improve skin texture while protecting the skin from allergens, bacteria, and moisture loss. Both cetyl alcohol and stearyl alcohol are listed by the FDA as non-sensitizing, non-toxic, and safe.
Stearyl Alcohol: Like cetyl alcohol, stearyl alcohol is also derived from fatty acids and is known for its hair-softening properties. It helps to keep the hair hydrated and manageable.
What is the difference between cetyl alcohol and stearyl alcohol?
Stearyl alcohol produces a whiter and more opaque product due to it’s longer carbon chain length. Cetyl alcohol breaks more easily when applied so gives a quicker spread and can hold onto more water than stearyl alcohol as it is more hydrophilic. This results in a higher gel phase which means a higher viscosity.