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🌿 Sodium Stearoyl Glutamate – Natural Amino Acid-Based Emulsifier for Clean Beauty Formulations
Sodium Stearoyl Glutamate is a high-performance, plant-derived emulsifier widely used in natural and mild cosmetic formulations. With its unique structure combining glutamic acid (an amino acid) and stearic acid (from vegetable sources), it delivers exceptional emulsification and skin-conditioning effects while aligning with eco-conscious, vegan, and clean-label beauty standards.
As consumers increasingly seek sulfate-free, PEG-free, and naturally derived ingredients, Sodium Stearoyl Glutamate becomes the ideal choice for formulators aiming to deliver both performance and safety in products such as facial creams, emulsions, sunscreens, and sensitive-skin cleansers.
- INCI Name: Sodium Stearoyl Glutamate
- CAS Number: 38517-23-6
- EC Number: 253-980-9
- Molecular Structure: Glutamic acid + Stearic acid (sodium salt form)
- Appearance: White to off-white powder or fine granules
- Odor: Mild fatty odor
- pH (1% solution): 6.0 – 7.5
- HLB Value: ~12 (ideal for O/W emulsions)
- Recommended usage level: 0.5 – 2.0% (by weight)
- Processing: Add to oil phase, heat to 70–80°C, and homogenize during emulsification
- Solubility: Dispersible in hot water or oil phase
- Biodegradability: Readily biodegradable
🌱 Natural Origin & Eco-Friendly Credentials
Sodium Stearoyl Glutamate is synthesized from 100% natural origin components. It is commonly used in certified natural and organic cosmetic products because it:
- Is plant-based (typically from palm or coconut oil + fermented sugar glutamic acid)
- Is vegan and cruelty-free
- Contains no ethoxylates, silicones, parabens, or synthetic preservatives
- Is approved by ECOCERT / COSMOS / NATRUE guidelines
- Is readily biodegradable and safe for aquatic environments
This makes it a preferred emulsifier in products targeting green beauty, clean skincare, and sensitive users.
💡 Key Benefits
✅ Excellent O/W Emulsifier
Sodium Stearoyl Glutamate is an anionic emulsifier, ideal for oil-in-water (O/W) emulsions. It stabilizes oil droplets in the aqueous phase and enhances the long-term stability of emulsions without the need for synthetic co-emulsifiers.
✅ Ultra-Mild and Skin-Compatible
Thanks to its amino acid base, it mimics the skin’s natural moisturizing factors (NMF), making it gentle, non-comedogenic, and non-irritating. Suitable for sensitive, dry, acne-prone, and baby skin.
✅ Smooth & Light Skin Feel
It delivers a non-greasy, silky after-feel, helping reduce the waxy or heavy feel often associated with natural emulsifiers. Ideal for premium or luxury cosmetic lines.
✅ Supports Formulation Versatility
Compatible with other emulsifiers, thickeners, and active ingredients. It can be used in a variety of pH ranges (4.5–7.5), and is heat-stable up to 80°C, allowing flexibility during emulsification.
Main Applications
🧪 The Applications of Sodium Stearoyl Glutamate
| Application | Function |
|---|
| Facial creams / lotions | Primary emulsifier for O/W emulsions |
| Moisturizers & serums | Improves texture, boosts skin softness |
| Natural sunscreen | Stabilizes oil + zinc oxide/titanium dioxide systems |
| Cleansing creams / milks | Supports mild, skin-friendly cleansing |
| BB / CC creams | Promotes spreadability and pigment dispersion |
| Baby skincare | Safe and gentle for infant care products |
| Men’s grooming products | Offers light texture and fast absorption |
⚙️ Formulation Tips
- Combine with co-emulsifiers like Glyceryl Stearate, Cetearyl Alcohol, or Lecithin to improve stability and richness
- Ideal for emulsifying natural oils, esters, and even mineral pigments
- Works well in cold-process or hot-process emulsification systems
- Suitable for low viscosity lotions to rich, creamy emulsions
📊 Advantages Compared to Conventional Emulsifiers
| Feature | Sodium Stearoyl Glutamate | PEG-Based Emulsifiers |
|---|
| Natural origin | ✅ Yes | ❌ No (Petrochemical) |
| ECOCERT/COSMOS approval | ✅ Yes | ❌ Not allowed |
| Skin compatibility | ✅ Very high | ⚠️ Moderate |
| Biodegradability | ✅ Excellent | ⚠️ Variable |
| Residue / heaviness | ❌ Minimal | ✅ May feel heavy |
| Clean-label formulation ready | ✅ Fully compliant | ❌ Often excluded |
📩 Request Sample or Quote Now
Are you developing a new natural facial cream or sulfate-free cleansing milk? Looking for a COSMOS-compliant emulsifier that delivers both performance and safety?
Sodium Stearoyl Glutamate could be the game-changer in your next product line.
📧 Contact us now to request a free sample, specification sheet, or bulk quotation.
We ship worldwide and offer professional formulation guidance to support your success.
🌎 Why Partner with Us?
We are a professional manufacturer and global supplier of high-quality surfactants and emulsifiers for cosmetic and personal care formulations.
- Over 10 years of export experience
- Support for custom formulations and private label projects
- Compliance with EU, US, and Asian cosmetic ingredient standards
- Competitive pricing for bulk and long-term supply agreements
- Technical support and free sample evaluation
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