
THE STORY OF AOS LIQUID (ALPHA OLEFIN SULFONATE)
AOS Liquid: The High-Foam Sulfate-Free Cleanser
AOS Liquid (Alpha Olefin Sulfonate) is an anionic surfactant known for its rich, creamy foam and high cleansing efficiency. Sulfate-free, biodegradable, and mild to skin, it is widely used in personal care and home care formulations where strong detergency and gentle skin feel are both required.
Derived from Petro-Based Olefins, Refined for Purity
AOS is produced by sulfonating α-olefins (typically C14–C16 range), followed by neutralization and filtration to create a low-color, high-activity liquid surfactant. TRCkem supplies stable, cosmetic-grade AOS Liquid with controlled pH, low salt content, and excellent solubility in water and blends.
Foam. Cleanse. Condition.
AOS Liquid delivers a balance of cleansing power and mildness, making it ideal for sulfate-free systems. Key benefits:
✅ High, stable foaming even in hard water
✅ Excellent wetting and emulsification properties
✅ Mildness compared to SLS/SLES
✅ Biodegradable & eco-friendly alternative to traditional sulfates
✅ Compatible with amphoteric & nonionic surfactants
Used in shampoos, face washes, bath gels, kids’ cleansers, pet care, liquid soaps, and home-care detergents.
Versatile,A Easy-to-Formulate & Globally Accepted
Typical usage: 5–25% depending on product type and foam level.
Stable across pH 5–9 and compatible with most preservatives and fragrance systems.
Store in sealed containers away from freezing conditions and strong oxidizers.
Readily biodegradable and approved for use in personal care and detergent formulations under FDA, REACH, and global cosmetic regulations.
Formulator’s Queries, We Answered
1. What is AOS Liquid (Alpha Olefin Sulfonate)?
AOS Liquid, or Alpha Olefin Sulfonate, is an anionic surfactant derived from alpha-olefins. It is commonly used in personal care products due to its excellent foaming, emulsifying, and cleansing properties.
2. What is the CAS Number and INCI Name of AOS Liquid?
CAS Number: 68439-57-6
INCI Name: Sodium C14-16 Olefin Sulfonate
3. What are the benefits of using AOS Liquid in personal care products?
High Foaming Ability: Produces rich and stable foam, enhancing the user experience.
Effective Cleansing: Efficiently removes dirt and oils from the skin and hair.
Mildness: Gentle on the skin, reducing the risk of irritation.
Hard Water Tolerance: Maintains performance in hard water conditions.
Biodegradability: Environmentally friendly and sustainable.
4. What are the common applications of AOS Liquid in personal care?
Shampoos: Provides effective cleansing and foaming properties.
Body Washes and Shower Gels: Offers a rich lather and gentle cleansing.
Facial Cleansers: Suitable for formulations targeting oily skin.
Liquid Hand Soaps: Ensures thorough cleansing with a pleasant foam.
5. Is AOS Liquid safe for use in personal care products?
Yes, AOS Liquid is considered safe for use in personal care products when formulated appropriately. It is important to adhere to regulatory guidelines and conduct necessary safety assessments during product development.
6. Can AOS Liquid cause skin irritation?
AOS Liquid is generally well-tolerated and considered mild. However, as with any ingredient, it's advisable to conduct patch tests, especially for individuals with sensitive skin, to ensure compatibility.
7. Is AOS Liquid environmentally friendly?
Yes, AOS Liquid is readily biodegradable and derived from renewable resources, making it an environmentally friendly choice for personal care formulations.
8. Are there alternatives to AOS Liquid in personal care products?
Yes, alternatives include:
Sodium Lauryl Sulfate (SLS): A commonly used surfactant with strong cleansing properties.
Sodium Laureth Sulfate (SLES): Offers effective cleansing with a milder profile compared to SLS.
Cocamidopropyl Betaine: A mild amphoteric surfactant derived from coconut oil, often used in combination with other surfactants to enhance foam and reduce irritation.








