Carbomer 940: The Essential Thickener and Stabilizer in Cosmetics and Pharmaceuticals

What is Carbomer 940?

Carbomer 940 is a synthetic high-molecular-weight polymer of acrylic acid, widely used in the cosmetics and pharmaceutical industries as a thickening, suspending, and stabilizing agent. Known for its excellent ability to create clear, gel-like textures, Carbomer 940 helps formulateers design products with smooth consistency and effective delivery of active ingredients.

It’s a popular choice for gels, creams, lotions, and topical medications due to its versatility and performance.

Key Features and Benefits of Carbomer 940

1. Superior Thickening Ability

Carbomer 940 can thicken aqueous solutions efficiently, producing smooth, clear gels with minimal usage (typically 0.1% to 1%). This allows for elegant textures without heaviness.

2. Stable Emulsions and Suspensions

It stabilizes emulsions by preventing oil and water phases from separating, and suspends insoluble particles evenly, making it ideal for makeup, sunscreens, and pharmaceutical creams.

3. Wide pH Compatibility

This polymer works well in a pH range of approximately 5 to 10, offering flexibility in various formulations.

4. Clear and Transparent Gels

Unlike some thickeners that cloud formulations, Carbomer 940 produces crystal-clear gels, which is highly desirable in skincare and cosmetic products.

5. Controlled Viscosity and Shear-Thinning Behavior

Carbomer gels exhibit shear-thinning properties, meaning they become less viscous when rubbed or squeezed, making products easy to apply while maintaining stability in the container.

Common Applications of Carbomer 940

• Facial gels and moisturizers

• Sunscreens and after-sun gels

• Hand sanitizers (alcohol gels)

• Topical pharmaceutical creams and ointments

• Makeup products and primers

• Hair styling gels

How Does Carbomer 940 Work?

Carbomer 940 molecules swell in water, forming a three-dimensional network that traps water and thickens the formulation. When neutralized with a base like triethanolamine or sodium hydroxide, it achieves maximum viscosity and gel clarity.

Safety and Regulatory Status

Carbomer 940 is generally recognized as safe (GRAS) for topical use by regulatory bodies like the FDA and the European Commission. It is non-toxic, non-irritating, and hypoallergenic when used in appropriate concentrations.

Tips for Formulators

• Neutralize properly: Carbomer requires neutralization to achieve full thickening; pH adjustment is critical.

• Avoid high shear mixing: Gentle mixing preserves gel clarity and viscosity.

• Combine with other ingredients: Carbomer can be paired with humectants, preservatives, and active ingredients for multifunctional products.

Final Thoughts

Carbomer 940 is an indispensable ingredient in the world of cosmetics and pharmaceuticals. Its ability to create stable, clear, and aesthetically pleasing gels and creams makes it a favorite among formulators. Whether in a soothing moisturizer, a protective sunscreen, or a medicinal ointment, Carbomer 940 ensures your product has the perfect texture, stability, and performance consumers expect.

For bulk orders and inquiries, visit Medikonda Nutrients - Carbomer 940

Medikonda Nutrients is the Largest Manufacturer, B2B Bulk Wholesale Supplier of Carbomer 940 in Australia and New Zealand.