99% Carboxymethyl Chitosan

99% Carboxymethyl Chitosan is a high-purity derivative of chitosan, obtained through carboxymethylation of natural chitosan extracted from the shells of shrimp and crabs. This modification significantly improves its water solubility, biocompatibility, and stability across a wide pH range. With excellent moisturizing, antibacterial, film-forming, and tissue-repairing properties, it is widely used in skincare products, wound dressings, biomedical applications, and functional foods. Compared to unmodified chitosan, it offers enhanced formulation flexibility and performance, especially in systems that require clear solutions or mild conditions. Its high purity ensures safety, consistency, and compatibility with sensitive formulations, making it an ideal multifunctional ingredient for natural and science-driven product lines.

1.High Purity (≥99%)
Thanks to advanced extraction and purification techniques, impurities such as proteins and inorganic salts are effectively removed. This ensures excellent product stability and suitability for use in medical, pharmaceutical, and premium cosmetic formulations where high purity is essential for both safety and performance.

2.Excellent Water Solubility
By introducing hydrophilic carboxymethyl groups into the chitosan molecule, intermolecular hydrogen bonds are disrupted, allowing the product to dissolve quickly in water, even in cold conditions. This high solubility broadens its application in formulations where clarity and rapid dissolution are key.

3.Good Biocompatibility and Biodegradability
Derived from natural chitosan, its molecular structure is compatible with human tissues. It can be enzymatically degraded in the body into non-toxic small molecules, causing no irritation or residue. This makes it suitable for use in sensitive applications such as wound dressings, oral care, and pediatric skincare.

4.Multifunctional Properties (Moisturizing, Antibacterial, Repairing, Film-Forming)
Its multiple hydroxyl and amino groups help retain moisture, adsorb ions, and form a breathable protective film on the skin surface. This multifunctionality provides simultaneous hydration, protection, and repair, enhancing the effectiveness of skincare, medical, and personal care products.

5.Broad pH Stability
The introduction of carboxymethyl groups enhances chemical stability, allowing the product to remain active and structurally intact in acidic to mildly alkaline environments. This makes it easy to combine with various ingredients and suitable for a wide range of product formulations.

6.Natural Origin and Environmental Sustainability
Sourced from marine waste materials such as shrimp and crab shells, it supports the concept of resource recycling and aligns with modern green and sustainable development trends. Its renewable origin and eco-friendly degradation profile contribute to cleaner production practices and environmental protection.

1. Cosmetics and Personal Care Products
99% Carboxymethyl Chitosan is widely used in the cosmetics industry, particularly in products such as face masks, serums, lotions, and post-repair skincare formulations. Its excellent moisturizing, film-forming, and antibacterial properties make it an ideal choice for sensitive skin care and post-procedure repair products. By enhancing the skin's barrier function and promoting hydration, it helps maintain long-lasting moisture while providing soothing and repairing effects to reduce external environmental stress.

2. Medical Dressings and Wound Care
In the medical field, it is commonly used in wound care products such as bandages, moist dressings, and burn dressings. Due to its excellent biocompatibility and antibacterial properties, it effectively promotes wound healing and reduces the risk of infection. Its film-forming ability also provides a protective barrier for the wound, preventing external contaminants from entering and accelerating the healing process.

3. Oral Care Products
In oral care, it can be added to toothpaste, mouthwash, and oral sprays. Its antibacterial properties help reduce bacterial growth in the mouth, prevent bad breath, and soothe the oral mucosa, providing comprehensive protection for oral health. Its mild characteristics make it suitable for long-term use in oral care products, ensuring safety and comfort during use.

4. Food and Dietary Supplements
It is also widely used in the food and dietary supplement industries, added as a functional ingredient in nutritional powders, capsules, and beverages. Its excellent biocompatibility and safety make it the preferred ingredient for food-grade applications. Additionally, it provides various supportive functions such as gut protection, antioxidant properties, and overall health promotion, making it an indispensable part of modern dietary supplements.

5. Tissue Engineering and Drug Delivery Systems
In biomedical materials, it is commonly used in tissue engineering and drug delivery systems, such as biological scaffolds, gel carriers, and controlled-release particles. Its unique molecular structure helps it bind with bioactive substances, serving as a drug carrier that gradually releases medication or growth factors, promoting tissue repair or disease treatment with significant potential for medical applications.

6. Pet Care and Veterinary Products
It is also used in pet care and veterinary products, particularly in pet skin sprays, ear liquids, and wound care treatments. Due to its mild properties, antibacterial effects, and ability to promote repair, it is ideal for pet skin care, offering a safe and effective alternative to hormone-based products, ensuring pets recover healthy skin without relying on harsh chemicals.

1. What should be noted during use?
Avoid prolonged exposure to high temperatures, humidity, or direct sunlight. Keep the formulation pH between 4.0 and 8.0 to maintain stability and activity. For skincare applications, it is recommended to conduct compatibility and stability tests during formulation development.

2. Are there any known side effects?
At recommended concentrations, no significant side effects have been reported. However, since 99% Carboxymethyl Chitosan is derived from shellfish, individuals allergic to chitosan or seafood should use it with caution. A patch test or small-area trial is recommended before use.

3. Who is this ingredient suitable for?
It is suitable for most general consumers, especially those with sensitive skin, post-procedure recovery needs, oral sensitivity, or for use in pet care. However, people allergic to chitosan should avoid using products that contain it.

4. Can it be combined with other ingredients?
Yes. It is highly compatible with various natural extracts, functional actives, moisturizers, and preservative systems. However, formulation-specific testing is recommended to confirm stability and synergistic effects.

5. Is it safe for use in pet or food-related products?
It has a good safety profile and is suitable for non-injectable pet care products and dietary supplements. Nevertheless, it should comply with relevant regulatory standards and usage limits. Consultation with professionals is advised for formulation and compliance evaluations.

6. Is it suitable for long-term use?
Yes. When used at appropriate concentrations and under standard conditions, it is suitable for long-term use in various products without burdening the skin or body.

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