Sodium Olefin Sulfonate
What is Sodium Olefin Sulfonate?
Sodium Olefin Sulfonate is an anionic surfactant made by reacting alpha-olefins, usually C14-C16 chain lengths, with sulfur trioxide followed by neutralization with sodium hydroxide. Originating from petrochemical feedstocks, it serves as a key cleansing agent in rinse-off personal care items like shampoos, body washes, and facial cleansers. In formulations, it reduces water's surface tension to emulsify and lift away sebum, grime, and residues from skin and hair surfaces. Its robust foaming ability improves product texture and spreadability, while high solubility supports use in aqueous systems. The ingredient maintains efficacy in varied water hardness levels and pH environments, aiding consistent performance across product types. Though potent for degreasing, it appears mainly in products designed for brief contact.
Benefits
Delivers strong cleansing to remove excess oil and impurities
Generates rich, stable foam for enhanced washing experience
Performs well in hard water without reduced effectiveness
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Those with oily skin needing deep cleansing | People with sensitive skin prone to dryness |
| Individuals preferring high-foaming shampoos or washes | Those experiencing irritation from anionic surfactants |
| Users of economical personal care products | Individuals with eye sensitivity during rinsing |
Safety Notes
- Evaluated as safe in rinse-off cosmetics at typical use levels
- Potential for mild irritation minimized in balanced formulations
Frequently Asked Questions about Sodium Olefin Sulfonate
What does Sodium Olefin Sulfonate do in products?
It acts as a cleanser by emulsifying oils and dirt, while boosting foam in washes and shampoos.
Is it suitable for sensitive skin?
May irritate sensitive skin; best for normal to oily types in rinse-off items.
How does it compare to other surfactants?
Offers strong cleansing similar to sulfates but with good stability in various conditions.