Product Overview
Carbomer 934 is a synthetic high-molecular-weight, cross-linked polyacrylic acid polymer supplied as a white fluffy powder. Compared with Carbomer 940 it delivers a slightly lower but highly stable viscosity with excellent yield value, which has made it a long-established workhorse thickener for opaque gels, creams, lotions and pharmaceutical suspensions. VeraVitabio supplies Carbomer 934 to USP/EP grade specifications for personal-care and pharmaceutical formulators worldwide.
Key Features
- Stable, high-yield thickening for opaque gels, creams and lotions
- Short-flow rheology with strong suspending ability
- Reliable viscosity stability in surfactant-containing systems
- Long-established pharmaceutical excipient (historically Carbomer 934P for pharma use)
- USP/EP grade supply — batch documentation (COA, MSDS) available on request
How It Works
- Dry Carbomer 934 is a tightly coiled acidic polymer cross-linked with allyl ethers of sucrose and/or pentaerythritol
- Dispersed in water, the polymer hydrates and swells
- Neutralization with NaOH, KOH or triethanolamine deprotonates the carboxyl groups and uncoils the chains
- The swollen network forms a stable, shear-thinning gel that thickens, suspends and stabilizes formulations
Typical Applications
- Opaque gels, creams and lotions
- Toothpaste and oral care formulations
- Shampoo, body wash and cleansing systems
- Pharmaceutical topical gels and ointments
- Oral and topical suspensions (excipient use)
- Emulsion stabilization for cosmetic and pharmaceutical systems
Key Specifications
| INCI Name | Carbomer |
|---|---|
| Material | Carbomer 934 — cross-linked polyacrylic acid homopolymer |
| CAS Number | 9003-01-4 (also referenced as 9007-16-3) |
| 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 B (historically Carbomer 934 / 934P); Ph. Eur.: Carbomer; JPE: Carboxyvinyl Polymer |
| Function | 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 934 (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.
