Carbomer 940: The Thickening and Stabilizing Agent
Carbomer 940 is a synthetic, high-molecular-weight polymer of acrylic acid used in cosmetics and personal care products as a thickener, stabilizer, and suspending agent. Known for its ability to form clear gels and increase product viscosity at low concentrations, it is a staple in skincare, hair care, and pharmaceutical formulations.
Properties and Characteristics
Carbomer 940 appears as a fine white powder that swells in water and forms a gel when neutralized with a base like sodium hydroxide or triethanolamine. It offers excellent clarity in gel formulations, is highly efficient at thickening, and helps stabilize emulsions by preventing ingredient separation.
Key Benefits
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Thickening Power: Provides high viscosity even at low usage levels.
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Stabilization: Prevents oil and water phases from separating in emulsions.
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Smooth Texture: Creates a silky, non-greasy feel in creams and gels.
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Suspension: Keeps insoluble particles evenly dispersed in a product.
Common Applications
Carbomer 940 is widely used in:
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Facial gels and moisturizers
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Hand sanitizers
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Hair styling gels
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Serums and lotions
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Medicated creams and topical gels
Formulation Advantages
One of the main reasons formulators choose Carbomer 940 is its ability to create stable, high-quality gels that are clear and elegant. It is compatible with many active ingredients and works well in a variety of pH ranges, making it versatile for different product types.
Safety and Tolerability
Carbomer 940 is considered safe for cosmetic and pharmaceutical use when formulated correctly. It is non-toxic and non-irritating in typical concentrations, although it should not be inhaled as a raw powder during manufacturing.
Final Thought
Carbomer 940 is a reliable thickening and stabilizing agent that plays a key role in delivering the right texture, stability, and performance in many personal care and pharmaceutical products. Its efficiency, clarity, and smooth feel make it a trusted choice for creating professional-grade gels, creams, and lotions.
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