



Sodium Laureth Sulfate (SLES) is a widely used surfactant in personal care products, known for its excellent foaming and cleansing properties. It is commonly found in shampoos, body washes, and toothpaste, where it helps to create a rich lather and remove dirt and oils effectively.
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CAS Number
68891-38-3
HS Code
3402.11.90/3402.39.00
Molecular Formula
C₁₂H₂₆Na₂O₅S
INCI Name
Sodium Laureth Sulfate (SLES)
Sodium Laureth Sulfate (SLES) is a widely used surfactant in personal care products, known for its excellent foaming and cleansing properties. It is commonly found in shampoos, body washes, and toothpaste, where it helps to create a rich lather and remove dirt and oils…
CAS Number
68891-38-3
INCI Name
Sodium Laureth Sulfate (SLES)
HS Code
3402.11.90/3402.39.00
Molecular Formula
C₁₂H₂₆Na₂O₅S
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| Property | Specification |
|---|---|
| Appearance | Colourless to Off-White liquid |
| Odor | Nearly odorless |
| Molecular Weight (G/Mol) | 420.5 |
| Density Or Specific Gravity | 1.04 g/cm3 at 20℃ |
| Viscosity | 25000mPa.s. (25°C) |
| Ph (If Aqueous Solution) | 7.0 – 8.5 (10% aqueous solution) |
| Hlb Value | 40 |
| Property | Specification |
|---|---|
| Incompatibilities | Strong oxidizers and acids |
| Hazardous Reactions | Releases toxic sulfur oxides when heated. |
| Property | Specification |
|---|---|
| Melting Point | 10-15 °C |
| Boiling Point | >100°C |
Optimize SLES concentration for effective cleansing while minimizing irritation, and to include moisturizing agents to offset potential dryness and enhance scalp comfort. Add it slowly under gentle stirring to minimize foam generation. Maintain formulation pH between 5.5–6.5 for scalp compatibility and stability.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Lauryl Ether Sulfate (SLES, 70%) | 8.00% |
| Cocamidopropyl Betaine | 5.00% |
| Glycerin | 3.00% |
| Citric Acid (Anhydrous) | 0.50% |
| Phenoxyethanol (Preservative) | 0.50% |
| Fragrance | 0.50% |
| Demineralized Water | 82.50% |
Always combine SLES with a milder co-surfactant like Cocamidopropyl Betaine (CAPB) to reduce skin irritation and boost foam quality. Add slowly under gentle stirring to avoid excessive foaming. Adjust pH to 5.0–5.5 for skin compatibility and optimal product performance.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Lauryl Ether Sulfate (SLES, 70%) | 10.00% |
| Cocamidopropyl Betaine | 5.00% |
| Glycerin | 3.00% |
| Sodium Chloride | 1.00% |
| Preservative (e.g., Phenoxyethanol) | 0.50% |
| Fragrance | 0.50% |
| Citric Acid (to adjust pH) | 0.50% |
| Demineralized Water | 79.50% |
In detergent production, pre-dilute Sodium Lauryl Ether Sulfate (SLES) with deionized water before adding to the batch to prevent gel formation. Add it slowly under gentle stirring to maintain smooth consistency and avoid air entrapment.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Lauryl Ether Sulfate (SLES) | 9-10% |
| LABSA (96%) | 3-6.2% |
| Caustic soda | 0.2-0.83% |
| CDEA (70%) | 1-2% |
| AEO-9 | 1-4% |
| EDTA-2Na | 0.2-0.5% |
| Deionized water, | 50-60% |
| Fragrance, Dye, Preservatives, Salt (NaCl) |
Pre-dilute SLES (70%) with deionized water to ease incorporation and reduce foaming during mixing. In liquid soap production, add Sodium Lauryl Ether Sulfate (SLES) slowly to the water phase under gentle stirring to avoid excessive foaming. Combine with mild co-surfactants (e.g., CAPB) to enhance foam and skin feel.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sodium Laureth Sulfate (SLES 70%) | 5% |
| Sodium Lauryl Sulfate (SLS 92%) | 1.5% |
| Cocamidopropyl Betaine | 5% |
| Cocamide DEA (CDEA) | 1% |
| Glycerin | 1% |
| EDTA-2Na | 0.1% |
| Salt | 2% |
| Deionized Water | 70-80% |
| Pigment |
| Products | Authorized dosage |
|---|---|
| Shampoos | 10-25% |
| Liquid Soaps | 5-15% |
| Skin Cleansers | 1-5% |
Sodium Laureth Sulfate (SLES) manufacturers and suppliers provide this versatile surfactant for a wide range of applications in the personal care and cleaning industries. Known for its excellent foaming and cleansing properties, SLES is a key ingredient in many shampoos, body washes, and household cleaning products. Its ability to create a rich lather and effectively remove dirt and oils makes it a preferred choice for formulators. SLES is also valued for its emulsifying properties, helping to blend oil and water-based ingredients in cosmetic formulations. Manufacturers focus on producing high-quality SLES to meet the stringent demands of the personal care industry, ensuring consistency and safety in their products. As sustainability becomes increasingly important, many SLES manufacturers are adopting greener practices to minimize environmental impact, aligning with the growing demand for eco-friendly raw materials in the chemical industry.
Sodium Laureth Sulfate (SLES) manufacturers and suppliers provide this versatile surfactant for a wide range of applications in the personal care and cleaning industries. Known for its excellent foaming and cleansing properties, SLES is a key ingredient in many shampoos, body washes, and household cleaning products. Its ability to create a rich lather and effectively remove dirt and oils makes it a preferred choice for formulators. SLES is also valued for its emulsifying properties, helping to blend oil and water-based ingredients in cosmetic formulations. Manufacturers focus on producing high-quality SLES to meet the stringent demands of the personal care industry, ensuring consistency and safety in their products. As sustainability becomes increasingly important, many SLES manufacturers are adopting greener practices to minimize environmental impact, aligning with the growing demand for eco-friendly raw materials in the chemical industry.
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| Spain | 0.4% | SLES is permitted as a processing aid for washing apples and citrus fruits at a maximum dose of 0.4% v/v in solution. | - |
| United States | - | SLES is listed on the US TSCA inventory. No specific maximum for cosmetics. | FDA |
| India | - | No explicit max for finished products. | - |
| European Union | - | No concentration limit set by regulation. | SCCS (Scientific Committee on Consumer Safety) |
| Japan | - | No specific maximum for cosmetics. | MHLW – Ministry of Health, Labour and Welfare |
| Australia | - | No specific maximum for cosmetics. | - |
| China | - | No specific maximum for cosmetics. | NMPA - National Medical Products Administration |
| Korea, Republic of | - | No specific maximum for cosmetics. | MFDS - Ministry of Food and Drug Safety |
| ASEAN | - | No specific maximum for cosmetics. | - |
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