Ingredient review
Sodium Oleanolate
INCI: Sodium Oleanolate
A gentle, plant-based cleanser that effectively removes impurities without stripping the skin, making it a good choice for sensitive skin.
In plain English
Sodium Oleanolate is a salt derived from oleanolic acid, a natural compound found in plants like olive leaves and rosemary. In skincare, it acts as a mild surfactant—meaning it helps water mix with oil and dirt so they can be rinsed away. Unlike some harsh cleansers, it tends to be gentle on the skin and may even help calm irritation. You'll most often find it in facial cleansers and bar soaps where a thorough but non-stripping clean is desired.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- natural
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Sodium Oleanolate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Sodium Oleanolate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Sodium Oleanolate is the sodium salt of oleanolic acid, a triterpenoid compound naturally present in many plants such as olive, rosemary, and clove. It is produced by neutralizing oleanolic acid with sodium hydroxide, resulting in a water-soluble powder that functions as a surfactant and emulsifier in cosmetic formulations.
How it works
As a surfactant, Sodium Oleanolate reduces the surface tension between water and oils, allowing them to mix and be washed away. It also helps stabilize emulsions, keeping oil and water phases blended in creams and lotions. Additionally, oleanolic acid has been studied for its anti-inflammatory and antioxidant properties, which may contribute to a soothing effect on the skin.
Pros
Gentle on skin
Unlike sulfates, Sodium Oleanolate cleanses without stripping the skin's natural moisture barrier, making it suitable for daily use even on sensitive skin.
Soothing potential
Oleanolic acid has anti-inflammatory properties that may help calm redness and irritation, adding a skincare benefit beyond just cleansing.
Cons and cautions
Potential dryness at high levels
In formulas with a very high concentration of this surfactant, some users may experience slight tightness or dryness, especially if no moisturizing agents are present.
Limited human studies
While oleanolic acid is well-studied in lab settings, there are fewer clinical trials specifically on Sodium Oleanolate in cosmetic products, so some benefits are inferred rather than proven.
Best for
- People with normal to dry skin looking for a mild cleanser
- Those who prefer plant-based, biodegradable ingredients
Use caution if
- Individuals with known allergies to olive or rosemary derivatives (rare)
Usage tips
Safety summary
Sodium Oleanolate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. As with any ingredient, patch testing is recommended for those with very sensitive skin or known plant allergies.
Research notes
Oleanolic acid, the parent compound, has been studied for anti-inflammatory, antioxidant, and antimicrobial properties in vitro and in animal models. Human studies on Sodium Oleanolate specifically are limited, but its safety profile is supported by its long history of use in traditional medicine and cosmetics.
Common label clues
- Typical concentration
- 0.5% to 5% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Cleansers, Facial washes, Bar soaps, Emulsions
- Environmental note
- Derived from renewable plant sources and biodegradable, it has a lower environmental impact than many petroleum-based surfactants.
Good to know
- Sodium Oleanolate is often derived from olive leaves, making it a sustainable byproduct of the olive oil industry.
- It is considered biodegradable and environmentally friendly compared to some synthetic surfactants.
Common questions
What is Sodium Oleanolate in beauty products?
Sodium Oleanolate is a salt derived from oleanolic acid, a natural compound found in plants like olive leaves and rosemary. In skincare, it acts as a mild surfactant—meaning it helps water mix with oil and dirt so they can be rinsed away. Unlike some harsh cleansers, it tends to be gentle on the skin and may even help calm irritation. You'll most often find it in facial cleansers and bar soaps where a thorough but non-stripping clean is desired.
What does Sodium Oleanolate do in a beauty product?
As a surfactant, Sodium Oleanolate reduces the surface tension between water and oils, allowing them to mix and be washed away. It also helps stabilize emulsions, keeping oil and water phases blended in creams and lotions. Additionally, oleanolic acid has been studied for its anti-inflammatory and antioxidant properties, which may contribute to a soothing effect on the skin.
Is Sodium Oleanolate safe for most people?
Sodium Oleanolate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. As with any ingredient, patch testing is recommended for those with very sensitive skin or known plant allergies.
Who should be careful with Sodium Oleanolate?
Individuals with known allergies to olive or rosemary derivatives (rare)
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.