Carbomer 940: An Analysis of a Key Ingredient in the Cosmetics Industry

What is Carbomer 940?​

Carbomer 940 is a high-molecular polymer formed by the cross-linking of acrylic acid with allyl sucrose or pentaerythritol allyl ether, and it is an important member of the carbomer family. In appearance, it is a white, loose powder with a certain degree of hygroscopicity and a slight characteristic odor. Its molecular structure contains a large number of carboxylic acid groups, which makes it weakly acidic and compatible with many ingredients in cosmetic formulations.​

Characteristics and Advantages of Carbomer 940​

(1) Excellent Thickening Ability​

Only a small amount (usually 0.25%-0.5%) of Carbomer 940 added to a product can significantly increase the viscosity of the product, easily adjusting the consistency of the product. Whether it is a thin essence or a thick cream, it can be precisely controlled to make the product achieve the ideal texture. This efficient thickening property greatly reduces production costs while ensuring the stability of the product's texture.​

(2) Good Suspending Performance​

In cosmetics containing solid particles or oil droplets, such as facial cleansers with frosted particles and lotions containing essential oils, Carbomer 940 can act like an “invisible hand”, uniformly suspending these insoluble ingredients in the system, preventing them from precipitating or stratifying, and ensuring that the product remains in a uniform state during use.​

(3) Excellent Emulsifying and Stabilizing Effect​

For systems where oil and water are difficult to mix, Carbomer 940 can play an emulsifying role, making the oil and water phases perfectly blend to form a stable emulsion. It can reduce the oil-water interfacial tension, make the particle size of the emulsion more uniform, thereby improving the stability of the product and extending the shelf life of the product.​

Literature support: “Research on the Application of Polymeric Emulsifiers in Cosmetic Emulsions” (International Journal of Cosmetic Technology, 2019) pointed out that Carbomer 940, as an emulsifier, can effectively improve the stability of emulsions and is mild and non-irritating to the skin.​

(4) Strong Compatibility and High Safety​

Carbomer 940 is well compatible with common ingredients in cosmetics such as water, alcohol, oils, and active ingredients, and will not have adverse reactions with other ingredients. At the same time, after multiple safety tests, it has been shown that at normal use concentrations, it is mild and non-irritating to the skin and suitable for various skin types.​

Research source: “Safety Assessment of Cosmetic Ingredients” (Cosmetic Ingredient Review, 2018) conducted a comprehensive assessment of Carbomer 940 and concluded that it is safe for use in cosmetics.​

Applications of Carbomer 940 in the Cosmetics Field​

(1) Skin care Products​

Carbomer 940 mainly plays a role in thickening and stabilizing. It can make the product texture fine and smooth, easy to spread when applied, and can form a protective film on the skin surface, locking in moisture and enhancing the moisturizing effect.

(2) Makeup Products​

Foundations and Concealers: Carbomer 940 can adjust the consistency of foundations and concealers, making them have good spreadability, able to evenly cover the skin and conceal blemishes. At the same time, it can also improve the long-wearing ability of the product, making the makeup last longer.​

Lipsticks and Lip Glosses: In lipsticks and lip glosses, Carbomer 940 can increase the viscosity and gloss of the product, making the lipstick texture softer, easier to apply smoothly, and can improve the adhesion of the lip gloss on the lips, making it not easy to come off.​

Eye Shadows and Blushes: For powdery eye shadows and blushes, Carbomer 940 can be used as a binder to bond the powder particles together, preventing the product from breaking into powder, and at the same time, it can improve the color payoff and durability of the product.​

(3) Hair Care Products​

In shampoos, Carbomer 940 can adjust the consistency of the product, making it easy to squeeze out and apply, and can also enhance the stability of the foam. In conditioners, it can make the product texture thicker, better adhere to the hair, and play a role in nourishing and softening.​

Conclusion​

As an excellent cosmetic raw material, Carbomer 940 occupies an important position in the cosmetics industry with its outstanding characteristics such as thickening, suspending, emulsifying, and stabilizing. It can not only improve the texture and user experience of products but also enhance the efficacy and stability of products. Many literature research reports have also confirmed its safety and effectiveness in cosmetic applications.​​ 

• Name: Yuik
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