Cetyl Stearate

Fatty-acid

What is it

Cetyl stearate is a wax ester formed from cetyl alcohol and stearic acid. It is used as an emollient and structural ingredient in cosmetics and topical creams, and occasionally in supplement manufacturing as a coating material.

How it works

Cetyl stearate is a long-chain wax ester that imparts a smooth, conditioning feel to skin products. In topical formulations it helps lock in moisture and provides structure to creams and ointments. In supplement contexts, it can serve as a slow-release matrix or a hydrophobic coating. It is not absorbed in significant amounts orally and is metabolized as standard fatty acids if any does enter circulation.

Dosage

There is no recommended dietary intake for cetyl stearate. It is used at trace levels as an excipient or as a structural ingredient in topical products.

When and how to take it

Not applicable; cetyl stearate is an inactive ingredient.

1 commercial form

Compare the main delivery options and what they’re best suited for.

Cetyl stearate (wax ester)

Used in topical cosmetics and as a supplement manufacturing aid.

Not absorbed orally in meaningful amounts.

Safety

Generally regarded as safe at typical use levels. Skin sensitization is rare. Oral safety is not a major concern at the trace amounts used as excipients.

Who should be cautious

People with severe lanolin or wax sensitivities may react to topical wax esters. No specific cautions for trace excipient use in supplements.

Interactions

No significant medication interactions reported.

Frequently asked questions

Why is cetyl stearate in my product?⌄

It is an emollient or structural ingredient in topical creams, or a coating material in some supplements. It does not function as an active nutrient.

Is it safe?⌄

Yes. It is recognized as safe at typical use levels.

References

Cetyl Stearate on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Cetyl Stearate (PubMed search) — PubMed link

Track Cetyl Stearate with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

Coming to App Store
Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.