Product Overview
Carbomer 940 is a synthetic high-molecular-weight, cross-linked polyacrylic acid polymer supplied as a fine white fluffy powder. It is one of the most widely used rheology modifiers in cosmetics and pharmaceuticals: after dispersion in water and neutralization, it builds crystal-clear, high-viscosity, non-drip gels at very low use levels. VeraVitabio supplies Carbomer 940 to USP/EP grade specifications for personal-care and pharmaceutical formulators worldwide.
Key Features
- High viscosity at low concentration — efficient thickening typically at 0.2–1.0% use level
- Short-flow (non-drip) rheology with excellent suspending power for particles and droplets
- Forms sparkling clear water or hydro-alcoholic gels after neutralization
- Viscosity performance is largely unaffected by temperature
- USP/EP grade supply — batch documentation (COA, MSDS) available on request
How It Works
- Dry Carbomer 940 is a tightly coiled acidic polymer; once dispersed in water it hydrates and begins to uncoil
- Neutralization with a base such as NaOH, KOH or triethanolamine deprotonates the carboxylic acid groups
- The negatively charged chains repel one another and uncoil into a swollen, three-dimensional gel network
- The result is a clear, yield-stress, shear-thinning gel that suspends solids and stabilizes emulsions
Typical Applications
- Hair styling gels and styling creams
- Hydro-alcoholic hand sanitizer gels and aloe vera gels
- Moisturizing gels, sunscreen lotions and after-shave products
- Pharmaceutical gels, ointments and ultrasound / massage gel
- Cleansing creams and skin-freshening lotions
- Suspension systems for actives and insoluble particulates
Key Specifications
| INCI Name | Carbomer |
|---|---|
| Material | Carbomer 940 — cross-linked polyacrylic acid homopolymer |
| CAS Number | 9003-01-4 |
| Molecular Formula | (C₃H₄O₂)ₙ |
| Molecular Weight | High-molecular-weight cross-linked polymer (no single value) |
| Appearance | White, fluffy, hygroscopic powder |
| Compendial Reference | USP-NF: Carbomer Homopolymer Type C (historically Carbomer 940); Ph. Eur.: Carbomer; JPE: Carboxyvinyl Polymer |
| Function | High-viscosity rheology modifier, thickener and suspending agent |
| Assay / Purity | Available on request |
| Grade | USP / EP grade — batch documentation available on request |
| Packaging | Available on request |
| MOQ | Available on request |
| Note | Batch-specific COA governs all specifications |
Storage & Handling
Store in a cool, dry place below 25 °C, protected from light and moisture. Carbomer powder is hygroscopic — keep the container tightly sealed when not in use; moisture uptake can cause caking and viscosity loss. Avoid prolonged high-shear mixing after neutralization.
Why Choose VeraVitabio
- Bulk B2B supply — flexible MOQ from sample kits to full production quantities
- Full documentation — COA, MSDS, and specification sheets available on request
- OEM / ODM support — finished capsule, tablet, powder, and private-label development
- US & EU market experience — documentation support for importers and brand owners
- Stable supply chain — vetted manufacturing partners with batch-level traceability
Request a Quote — Looking to source Carbomer 940 (USP/EP Grade) for your next formulation? Send your specification and target volume to info@veravitabio.com or WhatsApp +86 157 7194 0528. Samples and full documentation are available for qualified B2B buyers. Web: veravitabio.com
For cosmetic and personal care formulation use. This product is not intended to diagnose, treat, cure, or prevent any disease. Specifications shown are for general reference; full Certificate of Analysis and supporting documentation are available upon request. Formulators are responsible for confirming permitted use levels and claim language in their target markets.
