Brief Introduction:
2.Alias: Xanthan
3.CAS:11138-66-2
4.Chemical formula: (C35H49O29)n
5. Appearance:Light yellow to white flowable powder.
Characteristics and Application of Cosmetic-Grade Xanthan Gum
Cosmetic-grade xanthan gum is produced and controlled specifically for use in cosmetics, personal care products, and household cleaners. Its key features are:
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Item
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Specification
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Appearance
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Light yellow to white flowable powder
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Particle size
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99% through 80 mesh or 92% through 200 mesh
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Viscosity
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≥600
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Shearing property
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≥6.5
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Moisture
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≤15%
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Ash
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≤16
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Total nitrogen
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≤1.5%
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Pyruvic acid
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≥1.5%
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Lead
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≤2ppm
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Total plate count
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≤5000cfu/g
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Yeast
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≤500cfu/g
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E.coli
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≤30cfu/g
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Salmonella
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Negtive
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Excellent Rheology Modifier and Stabilizer:
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Thickening & Suspension: It significantly increases the viscosity of products like shampoo, shower gel, hand soap, liquid cleansers, and facial washes. It also suspends particles (e.g., scrubbing beads, moisturizing microspheres) to prevent separation.
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Emulsion Stabilization: In creams, lotions, and sunscreens, it helps stabilize oil-water mixtures, preventing phase separation and extending product shelf life.
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Improved Texture: Provides a smooth, easy-to-spread sensory experience without a sticky feel.
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Good Compatibility:
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Works well with common cosmetic ingredients like salts, surfactants, and other thickeners.
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Good pH Stability:
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Remains stable and effective across the typical pH range of cosmetic products (pH 3-12).
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High Purity and Safety:
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While its specifications for heavy metals and microorganisms may not be as stringent as food-grade, cosmetic-grade still requires high purity, low impurities, and must be non-irritating to skin and eyes, complying with cosmetic ingredient safety regulations.
Common Product Applications
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Hair Care: Shampoo, conditioner (adds viscosity, stabilizes nutrients, improves foam and combability).
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Facial Care & Skincare: Facial cleansers, toners, serums, creams, masks (especially gel-type masks for texture and ingredient suspension).
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Body Care: Body wash, body lotion, deodorant.
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Oral Care: Toothpaste (as a binder and thickener to stabilize the paste).
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Household Cleaners: Used as a thickener in some premium liquid detergents and hand soaps to prevent settling of active ingredients.
Difference from Food-Grade Xanthan Gum
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Standards Differ:
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Food Grade: Must comply with strict food safety standards like GB 1886.41 (China), FDA (USA), or EFSA (Europe), with tight limits on heavy metals, microorganisms, and solvent residues.
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Cosmetic Grade: Primarily follows regulations like China’s Cosmetic Safety Technical Specifications or similar international cosmetic ingredient standards. The focus is different, but safety is equally required.
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Cost Difference: Food-grade typically has higher production costs due to stricter standards.
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Application Context: The two grades are not interchangeable. Food manufacturers must use food-grade materials, while cosmetic manufacturers choose cosmetic-grade ingredients that comply with cosmetic regulations, based on product needs and cost.
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