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Exploring the structural advantages of Lauramidopropyl Hydroxysultaine (LHS 35%) over conventional amphoterics.
Unlike standard anionic surfactants that hold a net negative charge, Lauramidopropyl Hydroxysultaine (LHS) features a zwitterionic structure containing both quaternary ammonium (positive) and sulfonic acid (negative) functional groups. This unique structure allows LHS to act amphoterically, adapting to the pH of the system. In acidic conditions, it acts as a cation, providing conditioning effects. Under alkaline conditions, it exhibits anionic behavior, delivering excellent cleansing properties. The presence of the hydroxyl group further increases its water solubility and compatibility with high electrolytes.
When combined with anionic surfactants like SLES, Sodium Cocoyl Glycinate, or Sodium Lauryl Sulfate, LHS reduces the Critical Micelle Concentration (CMC) of the overall surfactant system. The electrostatic attraction between the positively charged nitrogen in the sultaine group and the negatively charged head of the anionic surfactant facilitates tighter packing of mixed micelles. This results in enhanced viscosity response, greater foam density, and a significant reduction in skin irritation potential by minimizing the concentration of free surfactant monomers.
| Property Parameter | Specification Target | Methodology / Standard |
|---|---|---|
| Appearance (25°C) | Clear to Light Yellow Liquid | Visual Inspection |
| Active Substance Content | 35.0% ± 1.5% | GB/T 13173-2008 |
| Free Amine Content | ≤ 0.5% | Acid-Base Titration |
| Sodium Chloride Content | ≤ 6.0% | Potentiometric Titration |
| pH Value (5% Aqueous Sol.) | 5.5 – 7.5 | pH Meter |
| Color (Hazen) | ≤ 100 | GB/T 3143 |
How LHS 35% serves as a foaming agent, thickener, and conditioner across different product classifications.
LHS provides a flash foam profile that remains stable in the presence of hard water and sebum. The steric hindrance introduced by the hydroxysultaine group prevents foam collapse, creating a creamy, dense lather. In comparison to Cocamidopropyl Betaine (CAPB), LHS foam exhibits higher elasticity and slower drainage rates, making it the preferred choice for high-end shampoos and body washes.
As a thickening agent, LHS works synergistically with inorganic salts (such as NaCl) and polymeric thickeners (like PEG-150 Distearate or Carbomer). When formulated with anionic surfactants, LHS alters the shape of the micelles from spherical to rod-like structures. These elongated micelles entangle, increasing the viscosity of the formulation without the need for high salt concentrations, which can cause skin irritation.
The positive charge on the quaternary ammonium nitrogen within LHS coordinates with the negative charges on damaged keratin surfaces. This protective layer reduces static electricity, increases wet and dry combability, and leaves a soft, non-greasy feel. Its mildness index, measured by Zein value tests, shows a significant reduction in skin irritation compared to alkyl sulfates.
Suzhou Yuantairun Chemical Co., Ltd. sits at the heart of China’s advanced chemical industrial cluster, offering unique geographic and structural advantages to international buyers. By integrating modern synthesis plants with streamlined supply routes, we deliver high-purity surfactants that comply with international standards.
Our manufacturing facility uses automated, continuous-flow reaction systems to ensure batch-to-batch consistency. By utilizing local feedstocks of high-quality lauric acid and epichlorohydrin derivatives, we optimize costs and provide stable pricing amid global market fluctuations.
As consumer demand shifts toward clean, biodegradable, and non-irritating personal care products, LHS 35% has become a staple ingredient.
The global push away from sodium laureth sulfate (SLES) has led formulators to use amino acid-based surfactants. LHS acts as a key co-surfactant in these systems, restoring the foam volume and density typically lost in sulfate-free formulations.
LHS 35% is a clear liquid at room temperature and is easily soluble in cold water. This eliminates the need for heating cycles during production, reducing energy consumption and carbon emissions for global cosmetics factories.
Unlike standard betaines, LHS is stable in high-electrolyte formulations. This stability makes it ideal for specialized industrial cleaners, metal treating formulations, and agricultural applications where mineral and salt content is high.
Proven application profiles showcasing the performance and versatility of our chemical range.
Uses SLES (Sodium Laureth Sulfate) and AOS (Sodium Alpha-Olefin Sulfonate) as core surfactants for superior cleaning and rich foam. Combined with thickener CMEA (Cocamide MEA) for optimal viscosity and user experience. Eco-friendly and mild formula, compliant with international standards, reduces skin irritation while maintaining strong cleaning performance.
Features Sodium Cocoyl Glutamate (YG02-95) and Sodium Lauroyl Sarcosinate (LS-100N) for ultra-mild cleansing, ideal for sensitive skin. Natural amino acid-based surfactants produce fine, easy-to-rinse foam while retaining moisture. Certified by ECOCERT, meeting the demand for clean beauty in premium markets.
Utilizes cationic surfactant 1631 70 (Cetrimonium Chloride) for enhanced fabric softness and anti-static properties. Concentrated formula reduces packaging and transportation costs, improving sustainability. Compatible with cold-water washing, supporting energy-efficient laundry practices.
Combines amphoteric CAB-35 (Cocamidopropyl Betaine) and non-ionic APG1214 (Lauryl Glucoside) for rich, low-residue lather. Sulfate-free formula minimizes skin dryness, suitable for children and sensitive skin. Includes thickener Xanthan Gum for improved stability and luxurious texture.
Powered by LAS (Linear Alkylbenzene Sulfonate) and solvent EGDS (Glycol Distearate) for rapid breakdown of tough grease. Enhanced biodegradability with Alkaline Lipase, meeting industrial wastewater regulations. Highly concentrated formula, dilutable for cost-effective use, reducing overall operational expenses.
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We customize solutions based on your target market—hotel amenities, professional hair salons, or retail shelves—offering variable packaging options and price points.
Tailor your fragrances, concentration ratios, active levels, and packaging designs to meet the regulatory requirements of different retail markets.
Formulations designed for varied applications: commercial shopping malls, public restaurants, medical offices, and consumer retail products.
Browse our top-selling ingredients and high-demand chemical additives.
Common technical questions regarding the use, formulation, and storage of Lauramidopropyl Hydroxysultaine 35%.
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