Products Description
Sodium Lauroyl Glutamate (SLG) is an anionic amino acid surfactant synthesized via amidation of L-glutamic acid (corn-derived) with lauric acid (coconut-derived), followed by sodium salt formation. Its molecular structure consists of a hydrophilic amino acid head group and a hydrophobic lauryl chain, enabling dual functions of cleansing and mild skin conditioning. The amide linkage in its structure confers pH-dependent protonation behavior, maintaining stability in pH 5.0–9.0 and resisting hydrolysis in routine formulation processes. With a low critical micelle concentration (CMC: 0.1–0.5 mM), it exhibits high surface activity at low concentrations, reducing surface tension to 32–35 mN/m and forming fine, stable foam. It is readily biodegradable (≥90% in 28 days) and non-bioaccumulative, complying with eco-friendly formulation standards.
Technical Specification
| Item | Specification (Powder) | Specification (Liquid, 30% Active) | Test Method |
|---|---|---|---|
| Purity/Active Content | ≥95.0% | 28.0–32.0% | QB/T 4082 |
| Moisture | ≤0.50% | - | GB/T 6283 |
| pH (10% Aqueous Solution, 25°C) | 5.5–6.5 | 8.0–9.5 | GB/T 6368 |
| Sodium Chloride Content | ≤3.0% | 3.5–5.5% | QB/T 4082 |
| Foam Height (Ross-Miles, 0.1% Solution) | ≥180 mm | ≥200 mm | GB/T 7462 |
| Surface Tension (0.1% Solution, 25°C) | 32–35 mN/m | 33–36 mN/m | GB/T 18396 |
| Melting Point | 220–225°C | - | GB/T 617 |
| Biodegradability | ≥90% (28 days) | ≥90% (28 days) | OECD 301B |
Applications
- Facial Cleansers (Sensitive Skin): Primary surfactant (20–40% active); pH 5.5–6.5; avoids SLS/SLES irritation; for sensitive, atopic, or acne-prone skin.
- Baby Care Products: Body washes, shampoos, bubble baths (1–5% active); mild to infant skin/eyes; TEWL reduction by 27.4% vs SLS.
- Solid Shampoo Bars: Co-surfactant (5–15% active); paired with Coco Glucoside; foam height ≥250 mm; sulfate-free, plastic-free.
- Oral Care: Toothpaste foaming agent (0.5–2% active); compatible with fluoride; mild to oral mucosa.
- Gentle Body Washes: Primary/co-surfactant (5–20% active); hard water stable (≤300 ppm Ca²⁺); prevents soap scum.
- Restrictions:
Not for industrial heavy-duty cleaning (low degreasing power).
Avoid direct mixing with high-concentration cationic surfactants (risk of precipitation).
Not for use in pH <4.0 formulations (risk of precipitation).
Safety Profile
- Acute Toxicity: Rat oral LD50 >5,000 mg/kg (non-toxic).
- Skin Irritation: Rabbit skin test: 0.5/4.0 (minimal irritation); human cumulative irritation test score <0.5/4.0 (non-irritating).
- Eye Irritation: In vitro EpiOcular model: no corneal damage; 2% concentration causes zero stinging/redness in human ocular tests.
- Genotoxicity: Negative in Ames test, in vitro chromosome aberration test, and in vivo micronucleus test (non-genotoxic).
- Sensitization: Human patch test (105 patients): no allergic reactions (non-sensitizing).
- CIR Safety Conclusion: Approved for rinse-off products up to 40% and leave-on products up to 10% (2015 CIR Final Report).
- Certifications: ECOCERT, COSMOS, NATRUE certified; compliant with FDA, EU Cosmetic Regulation 1223/2009.
Why Choose Us
- High Purity & Consistency: Strict QC per Q/YS LG30S-2021; batch-to-batch consistency; 95%+ powder and 30% liquid grades available.
- Eco-Friendly & Certified: ECOCERT/COSMOS certified; plant-derived feedstock; 100% biodegradable; supports clean beauty claims.
- Technical Expertise: 10+ years in amino acid surfactants; formulation support for pH adjustment, synergy optimization, and stability testing.
- Reliable Supply: 1,000 MT/month production capacity; 25kg/drum (powder), 200kg/drum/IBC (liquid); global shipping with fast lead times.
- Safety Compliance: Full MSDS/TDS provided; CIR/FDA/EU compliant; third-party tested for toxicity/irritation.
Full Stock
affordable price
Professional Team
advanced technology
Frequently Asked Questions
Can Sodium Lauroyl Glutamate be used in organic cosmetics?
-
Yes, SLG is ECOCERT, COSMOS, and NATRUE certified, making it suitable for organic and natural cosmetic formulations.
What is the recommended usage concentration in facial cleansers?
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As a primary surfactant, the recommended concentration is 20–40% active content; as a co-surfactant, it is 1–10%.
Is Sodium Lauroyl Glutamate safe for sensitive skin?
-
Yes, SLG is clinically proven to be non-irritating and non-sensitizing, making it ideal for sensitive, atopic, and baby skin.
What is the shelf life of Sodium Lauroyl Glutamate?
-
Sealed and stored in a dry, ventilated place, the shelf life is 12 months.
Can SLG be used in hard water formulations?
-
Yes, SLG exhibits excellent hard water stability (up to 300 ppm Ca²⁺) and does not form soap scum.
delivery and shipping service
Storage: Store in a dry, cool, and well-ventilated place.
Packaging: 1 kg/bag, 25 kg/drum
Delivery Time: 7 days after order placement
1.Express Delivery
3-5 days for shipments under 100 kg
Door-to-door service
2.Ocean Freight
Over 300 kg: Approximately 30 days. Port-to-port service requires a professional customs clearance agent.
3.Air Freight
100kg-1000kg, 5-7 days
Airport-to-airport service, requires a professional customs clearance agent
Send inquiry or contact us to get free sample, and learn more details about it.
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