Sodium Oleate

Benefits
Cleansing

What is Sodium Oleate?

Sodium oleate is the sodium salt of oleic acid, an unsaturated fatty acid abundant in plant oils like olive and avocado. This natural-derived compound forms a soft, soapy substance used mainly in rinse-off cleansing products such as bar soaps, body washes, shampoos, and facial cleansers. Functioning as an anionic surfactant, it decreases surface tension at the water-oil interface, enabling micelles to encapsulate and remove dirt, sebum, and residues from skin and hair. Its emulsifying action stabilizes oil-in-water mixtures in lotions and creams, while also adjusting product thickness for smooth flow and spreadability. Often appearing in formulations seeking milder cleansing compared to sulfates, it supports foam generation and rinseability, making it suitable for daily personal care routines focused on effective yet non-stripping removal of impurities.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Cleansing agent
Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

- Delivers thorough cleansing by lifting away dirt, oil, and makeup.

- Stabilizes emulsions for even textures in creams and cleansers.

- Adjusts viscosity to enhance product feel and application.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
- Individuals with normal or oily skin needing reliable daily cleansing.
- People with very sensitive skin prone to dryness from soaps.
- Users preferring plant-based surfactants in soaps and washes.
- Anyone experiencing irritation from fatty acid salts.
- Those seeking non-comedogenic options in rinse-off products.
- Those with barrier-damaged skin where mild surfactants suffice better.

Safety Notes

  • - Generally recognized as safe in cosmetic concentrations by regulatory reviews.
  • - Low potential for pore-clogging based on comedogenicity assessments.

Frequently Asked Questions about Sodium Oleate

What is sodium oleate used for in cosmetics?

It serves as a surfactant in cleansers to remove impurities, emulsify phases in lotions, and control thickness.

Is sodium oleate safe for skin?

Authoritative reviews deem it safe at typical use levels with low overall hazard.

Does sodium oleate clog pores?

It carries a comedogenic rating of zero, making it unlikely to contribute to breakouts.