Cosmetic Grade Sodium Alginate Powder-CAS 9005-38-3
Product Name: Sodium Alginate
INCI Name: Sodium Alginate
Alias: Natural Seaweed Sodium Alginate, Cosmetic Instant Gelling Thickener, High-Elastic Film-Forming Stabilizer, Water-Based Rheology Modifier, Long-Lasting Moisturizing Seaweed Additive, Calcium Ion Reaction Gelling Agent
CAS No.: 9005-38-3
EINECS No.: 232-680-1
Source: Derived from high-quality natural kelp and brown seaweed raw materials, adopting low-temperature physical extraction, biological purification, multi-stage impurity removal and sterile spray drying technology.
Grade: Cosmetic Premium Natural Grade
Appearance: Uniform white fine powder, pure and impurity-free, odorless and non-toxic.
MOQ (Minimum Order Quantity): 25KG
Solubility: Rapidly swells and dissolves completely in cold and warm water to form uniform transparent viscous colloid, no need for high-temperature heating. Insoluble in conventional organic solvents such as ethanol. In water-based cosmetic systems, it has excellent thickening, suspension, stabilization and unique instant gelling properties after reacting with calcium ions. The colloid is smooth and non-sticky, with outstanding fluidity and film-forming toughness, and strong compatibility with various cosmetic raw materials.
Storage Condition: Sealed and stored in dry, cool and ventilated dust-free warehouse, avoid humid environment, high temperature and direct sunlight to prevent moisture absorption and agglomeration. Keep tightly sealed after opening to maintain powder solubility, gelling activity and film-forming performance.
Shelf Life: 24 Months
Sodium Alginate Powder, Cosmetic Grade Alginate, Natural Seaweed Thickener, Instant Calcium Gelling Agent, High Film-Forming Stabilizer, Long-Lasting Moisturizing Raw Material, Non-Sticky Skin-Friendly Additive, Water-Based Cosmetic Rheology Modifier
Cosmetic Grade Sodium Alginate Powder-CAS 9005-38-3
Cosmetic Grade Sodium Alginate is a high-performance natural brown seaweed-derived functional thickener, gelling and film-forming stabilizer. Refined via pure physical low-temperature extraction technology, it retains high-activity natural alginate polysaccharides.
Different from traditional seaweed thickeners, it has the unique advantage of cold water instant dissolution and calcium ion cross-linking gelling.
It can quickly form elastic and delicate gel texture without high-temperature heating, freely adjust product viscosity and gel hardness, and perfectly shape diversified cosmetic textures.
It has excellent suspension and anti-demulsification capabilities to maintain long-term formula uniformity. Its superior film-forming property can form a flexible breathable protective layer on the skin surface, lock moisture for a long time, relieve dry and tight skin, and smooth rough texture. With ultra-mild properties, stable performance and wide compatibility, it is an irreplaceable core raw material for special texture shaping and high-end moisturizing stable cosmetics.
Key Benefits
• Natural Brown Seaweed Source, Ultra-Mild Safety: Derived from high-quality natural kelp brown seaweed, pure physical purification without chemical modification. Zero irritation and zero sensitization, high safety factor, perfectly suitable for sensitive skin and clean beauty mild formulas.
• Cold Water Instant Dissolving, Process Efficient: Unique cold water fast solubility, no high-temperature heating required, saving production energy and time, avoiding active ingredient loss caused by high temperature, suitable for heat-sensitive formula production.
• Exclusive Calcium Cross-Linking Gelling, Adjustable Texture: Reacts instantly with calcium ions to form uniform elastic gel, freely adjust gel hardness, elasticity and viscosity, support diversified custom texture shaping, which cannot be achieved by ordinary thickeners.
• Superior High Film-Forming & Long-Lasting Moisturizing: Excellent film-forming toughness, forms flexible breathable protective film on skin surface, locks moisture efficiently for a long time, relieves dry roughness and tightness, and improves skin delicate texture.
• Powerful Suspension & Ultra-Stable System: Outstanding anti-delamination, anti-precipitation and anti-demulsification performance, stably suspending micro-particles and plant extracts, maintaining uniform product appearance and stable efficacy for a long time.
• Wide Compatibility & Stable Mass Production: Fully compatible with all water-based cosmetic systems, stably compounded with various heat-sensitive active ingredients and natural additives. Uniform batch performance, zero quality difference in large-scale industrial production.
Applications
• Special Texture Cross-Linked Gel & Mask: Core raw material for customized elastic gel and cross-linked jelly mask, creating unique bouncy and delicate gel texture that ordinary thickeners cannot achieve.
• Microcapsule & Particle Suspension Formulas: Ideal stabilizer for microcapsule embedding, plant fine particles and functional suspended ingredients, realizing long-term uniform suspension without precipitation.
• Heat-Sensitive Skin Care Products: Suitable for formulas containing heat-sensitive active ingredients, relying on cold water dissolving process to avoid high-temperature damage to active substances, retaining maximum product efficacy.
• Daily Moisturizing Lotion & Toner: Applied in moisturizing toner, soothing lotion and lightweight skin care products, improving product ductility and skin fitting degree, bringing non-sticky long-lasting moisturizing effect.
• Exfoliating & Cleaning Gel Series: Used in transparent exfoliating gel and cleaning gel, optimizing gel smoothness and particle uniformity, enhancing skin cleaning experience.
• Sensitive Skin Mild Clean Beauty: Ultra-mild natural seaweed raw material, zero irritation, suitable for sensitive skin soothing and moisturizing formulas, conforming to zero-addition clean beauty concept.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Cosmetic Grade Sodium Alginate Powder | Compliant |
Appearance | White Fine Powder, Odorless | Compliant |
Sodium Alginate Purity (%) | ≥98.0 | 98.6 |
Viscosity (mPa·s) | 180–300 | 245 |
Moisture Content (%) | ≤10.0 | 7.2 |
Ash Content (%) | ≤4.0 | 2.8 |
pH Value (1% Solution) | 5.5–7.5 | 6.4 |
Transparency (%) | ≥93.0 | 96.2 |
Calcium Reactivity | Instant Cross-Linking & Gelling | Qualified |
Heavy Metal (Pb) | ≤1ppm | 0.1ppm |
Arsenic (As) | ≤0.5ppm | Not Detected |
Mercury (Hg) | ≤0.1ppm | Not Detected |
Cadmium (Cd) | ≤0.1ppm | Not Detected |
Total Bacteria | ≤100CFU/g | Qualified |
Pathogenic Bacteria | Negative | Negative |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of Cosmetic Grade Sodium Alginate?
A1: The standard MOQ is 25KG, support sample orders for formula testing and trial production, and support customized viscosity and cross-linking gelling specifications.
• Q2: What is the core advantage of Sodium Alginate compared with other thickeners?
A2: Unlike carrageenan, chondrus crispus, pectin and agar which require high-temperature dissolution, sodium alginate supports cold water instant dissolution and has unique calcium ion cross-linking instant gelling function. It can customize gel texture freely, with better film-forming moisturizing effect and lighter skin feeling, suitable for special texture and heat-sensitive formulas.
• Q3: What is the recommended dosage in cosmetic formulas?
A3: Cross-linked jelly gel & mask: 0.8%–3.0%; Suspended particle skin care: 0.4%–1.6%; Moisturizing toner & lotion: 0.2%–0.9%; Cleaning exfoliating gel: 0.5%–2.0%, adjustable according to texture, viscosity and gelling requirements.
• Q4: Is Sodium Alginate suitable for sensitive skin formulas?
A4: Yes. It is refined from natural brown seaweed via pure physical process, zero chemical modification, zero irritation and zero sensitization. It has excellent biocompatibility and mild moisturizing effect, fully suitable for sensitive skin and clean beauty formulas.
• Q5: What formula systems is Sodium Alginate compatible with?
A5: Fully compatible with all water-based cosmetic systems including toner, essence, gel, lotion and cream. Stably compounded with heat-sensitive active ingredients, plant extracts and microcapsule components without demulsification or precipitation.
• Q6: What are the formula usage notes?
A6: It is recommended to disperse evenly in cold water first for full swelling; match with appropriate calcium ion additives to control gel elasticity and hardness; avoid ultra-high temperature and strong acid-base environment to maintain optimal film-forming and gelling performance.
• Q7: Do you support stable mass supply and customized specifications?
A7: Strictly control viscosity, purity and calcium cross-linking activity indicators to ensure stable batch performance. Support customized technical specifications. Sufficient inventory all year round supports long-term bulk orders and professional formula technical guidance.
Contact Us
💌 Contact us today for technical data, formulation guidance, and competitive pricing! E-mail:
You Might Also Like
1.ur Products A full range of high-quality cosmetic raw materials, including plant extracts, natural active ingredients, skin care actives and formulation additives. Stable supply & strict quality control.
