Cetyl Alcohol

What is it?

A fatty alcohol used as an emollient and emulsion stabilizer in creams and lotions; despite the word "alcohol" in its name, it is a waxy, non-drying ingredient chemically unrelated to drying alcohols like ethanol.

What does it do?

According to PubMed, a 2022 case series of seven patients with allergic contact dermatitis from stearyl alcohol in topical medications found that when these same patients were patch-tested with the closely related fatty alcohol cetyl alcohol, two of three also showed a positive reaction -- a real cross-reactivity/safety signal rather than an efficacy finding, since cetyl and stearyl alcohol are structurally related fatty alcohols (DOI: https://doi.org/10.1111/1346-8138.16325).

Check this ingredient with another — compatibility notes for every pair

See how this fits your skin — try SKYNN AI, free

Sources

Seven cases of contact dermatitis due to stearyl alcohol contained in topical medications

Important disclaimer

This page provides general skincare information and is not medical advice, diagnosis or treatment. Ingredient interactions and evidence summaries reflect published, cited sources — not a personal assessment of your skin. For medical skin conditions, rashes, pregnancy/lactation questions or persistent concerns, please consult a licensed dermatologist or HPCSA-registered practitioner.