HPMC (hydroxypropyl methyl cellulose) plays an important role in cosmetics, acting as a thickener, foam stabilizer, film-forming agent, and moisturizer.HPMC, with its mild, non-irritating, highly ion-resistant, and wide pH range (3-11), has become an indispensable basic ingredient in shampoos, shower gels, facial cleansers, and various creams and lotions.

In which cosmetics is HPMC used?

1. Cleaning and personal care products.HPMC is key to enhancing the user experience in shampoos, body washes, and amino acid facial cleansers.

HPMC Function: Creates rich foam that leaves skin feeling smooth.HPMC has a thickening effect, making the foam denser, more stable, and longer-lasting, and preventing it from dissipating quickly.HPMC has unique shear-thinning properties, making the product easy to spread and leaving the skin smooth and not tight after washing. It also has excellent antifreeze properties, ensuring that the product does not separate or precipitate at low temperatures. In anti-dandruff shampoos or facial cleansers containing granules, HPMC acts as a suspending agent to prevent sedimentation.

2. Skincare and makeup products: Creating a breathable moisturizing film. In lotions, creams, serums, and masks, HPMC primarily functions as a film-forming agent and moisturizer.

HPMC Function: HPMC forms a breathable protective film on the skin’s surface, effectively preventing moisture evaporation without clogging pores, resulting in a refreshing and non-greasy feel; As an emulsion stabilizer, it can prevent oil-water separation and extend the shelf life of products, and is especially suitable for formulations containing highly active ingredients (such as vitamin C and acids); HPMC has a texture-regulating effect on cosmetics. Depending on the viscosity grade (e.g., 4000 cps to 15000 cps), it can precisely control the product’s texture from light water to thick gel.

3. Oral care and other cosmetics: gentle thickening and safe encapsulation. In addition to facial and body care, HPMC is also widely used in toothpaste, mouthwash, and styling products.

HPMC Function: Oral care: In toothpaste, it acts as a binder and humectant, improving the paste structure and preventing dryness and cracking; in mouthwash, it helps suspend antibacterial ingredients; Hair styling: In hairspray or styling gel, it utilizes its film-forming properties to provide moderate styling force, and is easy to wash off without leaving any residue; Safety: As a non-ionic cellulose ether, HPMC is non-toxic and non-irritating, has passed GRAS certification, is very friendly to skin and eyes, and is suitable for sensitive skin.

Selection and Application Recommendations

Choosing the appropriate HPMC model is crucial in practical formulation applications.

Viscosity Selection: Low-viscosity models (e.g., 400-4000 cps) are commonly used in thin liquids such as toners and sprays, primarily acting as suspending agents and providing slight thickening; high-viscosity models (e.g., 15000 cps and above) are suitable for creams, gels, and shampoos that require strong thickening.

How to choose high-quality cosmetic-grade HPMC?

1. Verify compliance qualifications and security certifications.

The biggest difference between cosmetic-grade HPMC and construction-grade products lies in safety standards. Key indicators to confirm include: heavy metals and residual solvents; microbial limits; and authoritative certifications, such as ISO GMP.

2. Key metrics: Precise control of purity and degree of substitution.

High-quality cosmetic-grade HPMC typically requires a purity of over 99% and an extremely low ash content (≤5%) to ensure that the material is crystal clear and free of impurities and black spots. Substitution Degree (DS/MS) Stability: The degree of substitution of methoxy and hydroxypropoxy groups not only affects solubility but also film-forming properties and moisturizing power. Fluctuations in the degree of substitution between different batches can lead to unstable formulation viscosity or even stratification. It is recommended to choose brands that employ advanced processes and have minimal batch-to-batch variations, such as some leading companies specializing in fine chemicals.

3. Performance Verification

Viscosity Consistency and Solubility Experience

4. Supplier evaluation

Technical support and production capacity assurance. Besides the product itself, the supplier’s soft power is equally important.

HPMC is more than just a functional additive—it is a performance enhancer that improves texture, stability, and user experience across a wide range of cosmetic products.

By choosing the right grade and working with a trusted supplier, formulators can create products that are not only effective but also deliver a superior sensory experience that today’s consumers expect.