Hydrolyzed Keratin is a protein-derived cosmetic ingredient produced by the controlled hydrolysis of keratin. Keratin is a structural protein rich in sulfur-containing amino acids and is naturally associated with materials such as hair, wool and nails. Hydrolysis breaks the large keratin protein structure into smaller peptides and protein-derived fragments that can be incorporated more readily into cosmetic formulations.
Hydrolyzed Keratin is especially important in hair-care formulations, where it is used as a conditioning ingredient in shampoos, conditioners, hair masks, serums and treatment products. It can also be incorporated into selected skin-care and personal-care formulations.
Unlike a single low-molecular-weight chemical, Hydrolyzed Keratin is a complex mixture of peptides and amino-acid-containing components. Consequently, its exact composition, molecular-weight distribution and performance depend on the source material and manufacturing process.
The ingredient can be produced from different keratin-containing sources, and the source should be clearly identified in the raw-material documentation.
Keratin contains a characteristic amino-acid composition, including significant amounts of sulfur-containing amino acids. Cysteine is particularly important because disulfide bonds contribute to the structural characteristics of keratin.
Controlled hydrolysis breaks peptide bonds and modifies the original high-molecular-weight keratin structure into smaller peptides.
Because Hydrolyzed Keratin is a mixture rather than one defined molecule, a single universal molecular formula or molecular weight should not be assigned.
Hydrolyzed Keratin is primarily used as a hair-conditioning and skin-conditioning ingredient.
Its peptide-rich composition makes it particularly relevant to hair-care products.
Hydrolyzed Keratin can contribute to the conditioning characteristics of hair-care formulations.
Potential applications include:
Protein-derived ingredients can form films on suitable surfaces. In hair formulations, Hydrolyzed Keratin may contribute to the cosmetic feel and conditioning characteristics of the finished product.
The actual effect depends on:
Hydrolyzed Keratin can also be incorporated into selected skin-care and personal-care formulations as a protein-derived conditioning ingredient.
Hydrolyzed Keratin can be incorporated into shampoo formulations as part of a protein-based conditioning system.
It can be formulated alongside surfactants, conditioning polymers, humectants and other cosmetic ingredients.
Hydrolyzed Keratin is particularly suitable for rinse-off and leave-on conditioner formulations.
It can be incorporated into intensive hair-care and mask formulations.
Hydrolyzed Keratin can be used in leave-on products where a protein-derived conditioning ingredient is desired.
It can be used in specialty hair-treatment formulations, depending on the selected grade.
Certain grades can be considered for styling formulations where protein-derived film-forming or conditioning characteristics are desired.
Selected grades may also be used in creams, lotions, masks and other personal-care formulations.
Hydrolyzed Keratin is particularly relevant to modern protein-focused hair-care formulations.
It can be combined with other protein and amino-acid ingredients such as:
The compatibility and performance of each combination should be assessed in the finished formulation.
Hydrolyzed Keratin and Keratin should be maintained as separate product identities.
| Parameter | Hydrolyzed Keratin | Keratin |
|---|---|---|
| Structure | Smaller keratin-derived peptides | Larger structural protein |
| Molecular Size | Distribution of lower-molecular-weight components | Larger protein structure |
| Molecular Formula | Variable | Variable |
| Molecular Weight | Variable | Variable |
| Solubility | Grade-dependent; generally improved by hydrolysis | Grade-dependent |
| Main Applications | Hair and skin conditioning | Hair and personal-care formulations |
| INCI | Hydrolyzed Keratin | Keratin |
Hydrolysis changes the molecular-size distribution and therefore can affect solubility, processing behavior and cosmetic performance.
Hydrolyzed Keratin is a protein-derived material, and formulation conditions should be selected according to the characteristics of the individual grade.
Important considerations include:
Protein hydrolysates should generally be protected from unnecessarily harsh processing conditions.
For powder grades, the recommended dispersion and dissolution procedure should be followed. For liquid grades, the carrier system and preservation system should also be considered.
Finished formulations should be evaluated for:
Because Hydrolyzed Keratin is a complex mixture of peptides, quality should be evaluated using multiple analytical parameters rather than relying on one universal assay.
Relevant quality parameters may include:
A universal HPLC assay percentage should not be invented for Hydrolyzed Keratin because the material contains a distribution of peptides and amino-acid-derived components.
Numerical specifications should be based on the actual commercial grade and validated analytical method.
Hydrolyzed Keratin is a specialty protein-derived cosmetic ingredient particularly suited to hair-care and personal-care formulations.
As a Hydrolyzed Keratin Cosmetic Ingredient Manufacturer in India, Swapnroop can support B2B requirements for specialty protein-derived cosmetic raw materials.
Hydrolyzed Keratin can be considered for manufacturers developing:
The appropriate grade should be selected according to its keratin source, hydrolysis process, molecular-weight distribution, protein content, physical form, solubility and microbiological characteristics.
| Parameter | Specification |
|---|---|
| Appearance | White or colourless crystals / white powder |