AC-Carbomer 940 for High-Performance Cosmetic Gel Formulations

AC-Carbomer 940: The Benchmark Carbomer Grade

Among all carbomer grades available in the cosmetic ingredient market, AC-Carbomer 940 from ANECO has earned recognition as the industry benchmark against which other carbomer products are measured. This distinguished position reflects the exceptional combination of thickening efficiency, gel clarity, formulation flexibility, and batch consistency that the 940 grade delivers across every cosmetic application for which it is used. For formulators seeking a reliable, high-performance carbomer that consistently delivers outstanding results in water-based cosmetic formulations, AC-Carbomer 940 represents the most proven and most versatile choice available.

Molecular Architecture of the 940 Grade

The outstanding performance of AC-Carbomer 940 originates in its specific molecular architecture — the crosslinking density and polymer chain structure that produce its characteristic rheological profile when hydrated and neutralized. The crosslinking structure of 940 produces a gel network with exceptional uniformity when properly prepared, and this network uniformity translates directly into the excellent light transmission properties that give 940-based gels their characteristic clarity. The yield stress generated by this network provides effective suspension of dispersed particles and oil droplets without requiring concentrations high enough to produce unacceptably stiff textures that would make products difficult to dispense and apply.

Thickening Efficiency at Low Concentration

One of the most commercially significant properties of AC-Carbomer 940 is its exceptional thickening efficiency — the ability to produce commercially relevant viscosity at very low use concentrations. Typical concentrations in cosmetic gel formulations range from 0.3 to 1.5 percent depending on target viscosity and formulation composition. This efficiency means that carbomer contributes minimally to formulation cost while providing the complete rheological functionality that defines product texture and flow behavior. The cost efficiency of AC-Carbomer 940 makes it the practical choice across product price points from mass market through prestige positioning.

Gel Clarity and Transparency

The clear gel that AC-Carbomer 940 produces when properly dispersed and neutralized is one of its most valued performance characteristics in cosmetic applications where product transparency is an important aesthetic attribute. The optical clarity of 940-based gels arises from the combination of low carbomer concentration, the polymer's near-water refractive index, and the uniformity of the gel network structure that prevents light scattering. Achieving maximum clarity requires complete carbomer dispersion before neutralization, and ANECO provides specific process guidance to help manufacturers consistently achieve the best possible gel transparency in production.

pH and Neutralization for Optimal Performance

Managing pH correctly is essential for unlocking the full thickening potential of AC-Carbomer 940 in cosmetic formulations. The polymer exists in a low-viscosity dispersed state below pH 6 and develops its full gel network through ionization of carboxyl groups as pH is raised above this threshold. Optimal viscosity for most 940 applications is achieved in the pH range of 6.0 to 7.5. Appropriate neutralizing agents include sodium hydroxide, triethanolamine, and amino acid-based neutralizers, each producing slightly different gel characteristics that formulators can select to optimize the sensory profile of their specific product.

Electrolyte Management in 940 Formulations

AC-Carbomer 940 exhibits sensitivity to electrolytes that requires attention when formulating systems that contain ionic ingredients including certain preservatives, active ingredients, and fragrance components. Electrolytes interfere with the ionization of the polymer's carboxyl groups and reduce gel network expansion, resulting in viscosity below what the same formulation would achieve without ionic ingredients. Formulators who need to incorporate significant quantities of ionic components should prototype carefully and may need to adjust carbomer concentration to compensate for electrolyte-induced viscosity reduction.

Applications and Formulation Guidance

AC-Carbomer 940 excels across the full range of clear gel and water-based cosmetic applications including facial serums, hand gels, clear body gels, and transparent personal care products. Explore the complete technical specifications and formulation guidance for AC-Carbomer 940 at ANECO's product page.