Hydrolyzed Chitosan is a lower-molecular-weight form of Chitosan obtained by controlled cleavage of the Chitosan polymer chains. Chitosan itself is a polysaccharide derived from the deacetylation of chitin and contains glucosamine and N-acetylglucosamine units connected through β-(1→4) glycosidic bonds. Hydrolysis reduces the average polymer-chain length and can consequently change viscosity, solubility, film formation and formulation handling.
Hydrolyzed Chitosan is used as a specialty cosmetic ingredient where a chitosan-based polymer with lower molecular weight and modified solution characteristics is desired. The exact performance depends on the starting Chitosan, hydrolysis process, degree of deacetylation and resulting molecular-weight distribution.
Unlike conventional Chitosan, which is generally difficult to dissolve in neutral water, appropriately processed lower-molecular-weight Chitosan materials can provide improved water compatibility depending on their molecular structure and formulation conditions.
Hydrolyzed Chitosan is a polymeric derivative of Chitosan rather than a single defined small molecule. Chitosan is commonly identified by CAS 9012-76-4, but this identifier should not automatically be treated as a unique CAS for every hydrolyzed Chitosan grade. The exact CAS and INCI declaration should follow the supplier's current technical documentation.
The polymer contains β-(1→4)-linked glucosamine and N-acetylglucosamine units. The representative Chitosan polymeric composition is commonly expressed as (C₆H₁₁NO₄)ₙ, although the actual composition changes with degree of deacetylation. Hydrolysis reduces chain length without changing the fundamental glucosamine-based polymer identity.
Molecular weight is therefore one of the most important technical parameters. Commercial Chitosan materials can span a very broad molecular-weight range, with published technical information reporting approximately 3–3,600 kDa across different grades.
Hydrolyzed Chitosan can provide film-forming, conditioning and formulation-support functionality. Chitosan is documented as a film-forming cosmetic ingredient, with its polymeric structure capable of producing clear films after drying.
Reducing molecular weight can alter the polymer's viscosity and handling characteristics. This can be useful when formulators require a Chitosan-derived ingredient with different rheological properties from conventional high-molecular-weight Chitosan.
The cationic character of Chitosan under acidic conditions can also provide affinity toward negatively charged surfaces. This characteristic is relevant to hair-care formulations where polymer deposition and conditioning are formulation considerations.
Hydrolyzed Chitosan can be considered for a range of skin-care, hair-care and personal-care formulations.
Potential applications include facial serums, lotions, creams, gels, facial masks, hair conditioners, hair-treatment products and styling formulations. It may also be incorporated into aqueous cosmetic systems where film formation or polymer-based conditioning is required.
The appropriate grade should be selected according to molecular weight, degree of deacetylation, viscosity, solubility and pH behavior. Low-molecular-weight grades can behave differently from conventional Chitosan and should therefore be evaluated independently during formulation development.
The most important specifications for Hydrolyzed Chitosan are molecular weight, degree of deacetylation, viscosity, moisture and solubility. These parameters can vary substantially between grades.
Commercial Chitosan references illustrate this variability: one grade specifies minimum 70% deacetylation, drying loss NMT 10% and viscosity 5–20 mPa·s, while another specifies minimum 80% deacetylation, drying loss NMT 15% and viscosity 200–600 mPa·s. These values demonstrate why Chitosan-derived materials should be specified according to their exact grade rather than using one universal specification.
Hydrolyzed Chitosan may have improved handling or water compatibility compared with higher-molecular-weight Chitosan, but the actual solubility depends on molecular weight, degree of deacetylation and pH.
The Assay (HPLC) should not be assigned an arbitrary percentage. For a polymeric material, molecular-weight characterization, degree of deacetylation, viscosity and polymer-content testing can be more relevant than a conventional small-molecule HPLC assay.
Hydrolyzed Chitosan is a specialty cosmetic ingredient for manufacturers developing polymer-based skin-care and hair-care formulations. Its reduced molecular weight provides formulators with an alternative to conventional Chitosan grades when different viscosity, solubility or film-forming characteristics are required.
For B2B sourcing, the exact grade should be evaluated according to molecular-weight range, degree of deacetylation, viscosity, moisture, ash, pH, solubility, heavy metals and microbiological specifications.
As a Hydrolyzed Chitosan Cosmetic Ingredient Manufacturer in India, the material can support bulk cosmetic raw-material requirements for skin-care, hair-care and personal-care formulation development.
| Parameter | Specification |
|---|---|
| Appearance | White or colourless crystals / white powder |