
General Description
NANOGREEN C25, also known as Ceteareth-25, is a non-ionic surfactant and emulsifier derived from fatty alcohols (cetyl and stearyl alcohols) that have been ethoxylated. It appears as a white to off-white waxy solid or flakes and is valued in the cosmetic industry for its ability to stabilize oil-in-water emulsions. With excellent emulsifying and solubilizing properties, NANOGREEN C25 is widely used in creams, lotions, hair care products, and other personal care formulations where a smooth and stable texture is essential.
Uses in the Cosmetics Industry
NANOGREEN C25 plays a crucial role in a wide range of formulations:
- Creams & Lotions: Works as a primary emulsifier to stabilize oil and water phases, ensuring consistent product texture.
- Hair Conditioners & Treatments: Helps in dispersing oils and conditioning agents evenly for smooth application.
- Facial Cleansers: Improves solubility of oils and active ingredients while maintaining product stability.
- Makeup & Sunscreens: Acts as an emulsifier to achieve uniform blending of ingredients for consistent coverage.
- Shampoos & Body Washes: Enhances solubilization of fragrances, essential oils, and actives for clear formulations.
Its versatility and compatibility with a wide range of oils and actives make NANOGREEN C25 a preferred choice for manufacturers looking to create high-performance emulsions.
Hazards
While NANOGREEN C25 is widely regarded as safe when used within recommended cosmetic concentrations, certain precautions should be noted:
- Skin Irritation: Rare, but in high concentrations it may cause mild irritation, especially on sensitive skin.
- Eye Irritation: Direct contact with undiluted material may cause temporary irritation.
- Ethoxylation Residues: As with other ethoxylated ingredients, trace impurities (e.g., 1,4-dioxane) may be present if not properly purified; sourcing from reputable suppliers minimizes this risk.
- Environmental Impact: Considered biodegradable but should still be handled responsibly in large-scale manufacturing.
Proper formulation practices and adherence to regulatory concentration limits ensure safe use of NANOGREEN C25 in cosmetic products.
Storage & Stability
- Storage: Store in a tightly sealed container in a cool, dry environment, away from excessive heat and moisture.
- Stability: Stable in both acidic and alkaline formulations, maintaining emulsifying properties across a broad pH range.
NANOGREEN C25 is available in bulk and wholesale for industrial and cosmetic manufacturing, ensuring consistent quality and performance in emulsions and formulations.
CAS Number: 9004-95-9
INCI Name: Ceteareth-25
Composition: Polyethylene glycol (PEG)-modified cetearyl alcohol, a mixture of ethylene oxide and cetearylalcohol
Purity Grade: Cosmetic Grade
Appearance: White to off-white waxy solid or powder
Solubility: Soluble in water, oils, and alcohols; forms emulsions in aqueous systems
Preservation: Typically stable, but may require preservatives in formulations depending on the water content and exposure to contamination
Storage: Store in a cool, dry place; protect from heat, moisture, and light
Raw Material Sources: Derived from cetearyl alcohol (a fatty alcohol derived from coconut or palm oil) and ethylene oxide (a petrochemical-derived compound)
Manufacture: Synthesized by ethoxylation of cetearyl alcohol with ethylene oxide, followed by processing and filtration
Animal Testing: May vary by supplier; verify with manufacturer for cruelty-free status
GMO: Generally non-GMO, but check the supplier's certification if necessary
Vegan: Yes; typically plant-derived cetearyl alcohol, though some may be processed with petrochemicals
Warning: Generally considered safe, though may cause irritation in sensitive individuals; patch testing is recommended
THE STORY OF CETEARETH-25
Ceteareth-25: High-HLB Emulsifier for Smooth, Stable Creams & Gels
Ceteareth-25 is a non-ionic, high-HLB emulsifier used to create stable oil-in-water (O/W) creams, lotions, cleansers, and hair systems. Known for producing light, elegant textures with good foaming and rinseability, it is commonly used in skincare, haircare, and cleansing emulsions.
Ethoxylated Blend of Cetyl & Stearyl Alcohols for High Stability
Ceteareth-25 is produced by ethoxylating a mixed fatty alcohol base (C16–C18) with an average of 25 moles of ethylene oxide. The result: a high-HLB (approx. 16) O/W emulsifier with excellent solubility, consistency control, and compatibility with various oils, silicones & actives.
Emulsify. Solubilize. Stabilize.
Key formulation advantages:
✅ Creates stable O/W emulsions with light, non-greasy feel
✅ Improves solubilization of oils, silicones & fragrance
✅ Supports foaming and rinse-off performance in cleansers
✅ Works synergistically with fatty alcohols & co-emulsifiers
✅ Allows high-viscosity product structuring without waxy skin drag
Used in: moisturizers, hair conditioners, leave-on lotions, styling creams, cleansing milks, shave foams, and color cosmetics.
Globally Accepted, Easy-to-Use Hot-Process Emulsifier
• Typical use level: 1–5% (up to 10% in hair products)
• Add to oil phase and melt at 60–75 °C
• Compatible with carbomers, gums, esters, oils, silicones & actives
• Approved for global cosmetic use (EU, US, ASEAN, India
• Not recommended for natural / organic certification because it is ethoxylated
• Ideal for white, glossy, stable emulsions with long shelf life
Formulator’s Queries, We Answered
1. What is NANOGREEN C25?
NANOGREEN C25 is a cosmetic-grade ingredient based on Ceteareth-25, a non-ionic surfactant and emulsifier widely used in personal care formulations. It is highly effective in creating stable emulsions, making it a preferred choice for creams, lotions, and hair care products.
2. What is the CAS Number and INCI Name of NANOGREEN C25?
CAS Number: 68439-49-6
INCI Name: Ceteareth-25
3. What are the benefits of using NANOGREEN C25 in personal care products?
Excellent Emulsification: Provides stability to oil-in-water emulsions.
Texture Enhancement: Improves spreadability and smoothness of creams and lotions.
Versatility: Compatible with a wide range of oils and active ingredients.
Hair Care Benefits: Enhances product consistency and performance in conditioners and styling formulations.
4. What are the common applications of NANOGREEN C25 in personal care?
Skin Creams and Lotions – Creates smooth, stable emulsions.
Hair Conditioners and Styling Products – Improves formulation stability and performance.
Sunscreens – Helps emulsify oil and water phases for even application.
Cleansing Products – Works as a solubilizer for fragrance and oil components.
5. Is NANOGREEN C25 safe for use in personal care products?
Yes, NANOGREEN C25 is considered safe for cosmetic use when formulated within recommended concentrations. It is widely approved in international cosmetic regulations for topical application
6. Can NANOGREEN C25 cause skin irritation?
In general, Ceteareth-25 is well-tolerated. However, in sensitive individuals or at high concentrations, it may cause mild irritation. It is recommended to use it within safe formulation guidelines and perform compatibility testing.