Methylcellulose

Product Description

Green Stone Swiss supplies high-purity methylcellulose (INCI: Methylcellulose, CAS 9004-67-5) via direct factory channels for cosmetic OEM and contract manufacturers requiring batch-traceable cellulose ethers with COA documentation.

This nonionic cellulose ether builds structured hydration networks in cold water, delivering tunable Brookfield viscosity, suspension stability, and grade-dependent thermal gelation linked to degree of substitution (Typical DS 1.6–1.9).

Formulators specify methylcellulose for peel-off masks, cleansing gels, styling fixtures, and aqueous thickening systems where vegan, oil-free rheology replaces animal-derived or synthetic polymers in export personal care lines.

Product Specification

• INCI Name: Methylcellulose
• CAS No.: 9004-67-5
• Appearance: White to off-white fine powder
• Particle Size: Suggested 80–120 mesh (Typical)
• Solubility: Disperses in cold water; insoluble in ethanol and oils
• Suggested pH: Stable pH 3.0–11.0 in aqueous systems (Typical)
• Assay Method: Brookfield viscosity at 2% w/w; DS by titration (Typical)
• Shelf Life: 36 months sealed, below 25°C (Typical)
• Standard Packaging: 25 kg fiber drum; 1 kg sealed bag
• Storage: Cool, dry, sealed; protect from moisture and dust
• Regulatory Status: Listed in INCI; indexed in CosIng as film-forming agent
• Quality & Testing: Typical COA: viscosity, moisture, pH, heavy metals, microbiology
• Compliance Note: For cosmetic use only; confirm local cellulose ether limits before export

Key Benefits & Applications

Methylcellulose delivers formulation-layer rheology control for aqueous cosmetic bases without oil-phase dependency.

• Aqueous Viscosity Control: Builds gel networks in cold water for serums, lotions, and cleansing gels at 0.5–3.0% w/w.
• Suspension Stabilization: Keeps pigments, scrub particles, and insoluble actives evenly dispersed in low-viscosity systems.
• Film-Forming Matrix: Supports flexible dry films in peel-off masks, styling gels, and temporary hold fixtures.
• Emulsion Phase Support: Assists water-phase body and stabilizes O/W emulsions when paired with co-emulsifiers.
• Cold-Process Rheology: Hydrates below 40°C, suitable for heat-sensitive peptide or vitamin systems.

Formulation Guidelines

Match viscosity grade to target flow; pre-slurry before full hydration for lump-free batches.

• Recommended use level: 0.5–3.0% w/w; Typical 2% aqueous solution for viscosity benchmarking
• Optimal formula pH: pH 3.0–11.0; verify grade-specific stability at extremes
• Processing: Slurry in glycerin or propanediol first; hydrate with gentle shear below 40°C
• Compatibility: Compatible with anionic/nonionic surfactants and polyols; avoid strong oxidizers
• Caution: Allow full hydration time; control dust during weighing and milling
• Synergy: Pair Sodium Hyaluronate at 0.05–0.2% to layer gel structure in clear aqueous peptide serums.