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    HomeProductsDaily ChemicalsCosmetic Raw MaterialsSilk Amino Acids CAS 96692-41-4
    • Silk Amino Acids CAS 96692-41-4

    Silk Amino Acids CAS 96692-41-4

    Silk Amino Acids 99% (CAS 96692-41-4) is a premium, water-soluble glycoprotein hydrolysate utilizing its low molecular weight for deep penetration in hair and skin care formulations. Chemically derived from natural raw silk (Bombyx mori), this fine white powder acts as a potent hygroscopic agent, capable of retaining moisture and improving the elasticity of the stratum corneum. As a concentrated mixture rich in Glycine, Alanine, and Serine, it is extensively integrated into shampoos, conditioners, and lotions to provide a silky, non-sticky feel and repair damaged hair cuticles. We ensure bulk supply capabilities for this material, providing access to competitive factory pricing and customized specifications to meet specific nitrogen content and molecular weight requirements (e.g., <1000 Da). Full technical documentation, including MSDS, TDS, COA, is available to support compliance and safety protocols.

    • CAS: 96692-41-4
    • Synonyms: Hydrolyzed Silk Protein, Silk Peptide, Silk Hydrolysate, Mixed amino acids from silk, Sericin amino acids
    • Einecs: 306-235-8
    • Grade: Cosmetic Grade
    • Package: 1kg/5kg Aluminum Foil Bag or 25kg Fiber Drum.
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    Product Description

    Silk Amino Acids (also known as Hydrolyzed Silk) are obtained by the hydrolysis of silk fibers. Unlike high molecular weight silk proteins that form films on the surface, Silk Amino Acids have a very low molecular weight (typically < 1000 Daltons). This allows them to penetrate the hair shaft and the upper layers of the epidermis.

    Our product is characterized by a high content of Alanine, Glycine, and Serine, which are similar to the amino acid structure of human skin. It exhibits excellent hygroscopicity (moisture-holding capacity), providing a silky, non-sticky feel to cosmetic formulations.

    1 Physicochemical Properties
    2 Applications
    3 Storage Conditions
    4 Safety Precautions

    Physicochemical Properties

    The following specifications represent our standard Cosmetic Grade export quality (High Purity 99% Powder):

    PropertySpecification / Value
    AppearanceWhite to off-white or faint yellow powder
    OdorCharacteristic (Mild to None)
    Total Nitrogen≥ 14.5%
    Protein Content (Dry Basis)≥ 90.0%
    pH Value (10% Solution)5.0 – 7.0
    Loss on Drying≤ 5.0%
    Residue on Ignition (Ash)≤ 4.0%
    SolubilityCompletely soluble in water
    Heavy Metals (Pb)≤ 10 ppm
    Arsenic (As)≤ 2 ppm
    Total Plate Count≤ 1000 cfu/g
    Yeast and Mold≤ 100 cfu/g

    Applications

    Silk Amino Acids are highly versatile and compatible with anionic, cationic, and non-ionic surfactants. Common dosage is 0.5% – 2.5%.

    1. Hair Care (Shampoos, Conditioners, Hair Masks):
      • Penetrates the hair cuticle to repair damage.
      • Improves moisture retention and adds a natural shine.
      • Reduces frizz and improves manageability.
    2. Skin Care (Lotions, Creams, Serums):
      • Excellent moisturizer due to its ability to bond with water.
      • Provides a smooth, soft, “silky” tactile feel to the skin.
      • Non-irritating, suitable for sensitive skin formulations.
    3. Color Cosmetics:
      • Used in foundations, mascaras, and lipsticks to improve texture and skin adhesion.
    4. Cleansers:
      • Reduces the drying effect of surfactants in body washes and facial cleansers.

    Storage Conditions

    • Hygroscopic Nature: Silk Amino Acids highly absorb moisture from the air. It is critical to keep the container tightly sealed immediately after use.
    • Environment: Store in a cool, dry, and well-ventilated area.
    • Temperature: Stable at room temperature, but avoid excessive heat.
    • Shelf Life: 24 months from the production date in original unopened packaging.

    Safety Precautions

    • General Safety: This product is a non-toxic, non-hazardous cosmetic ingredient derived from natural sources.
    • Inhalation: As it is a fine powder, avoid breathing dust. Use a standard dust mask during handling to prevent respiratory irritation.
    • Skin/Eye Contact: Generally non-irritating. However, in case of direct contact with pure powder in eyes, flush gently with water.
    • Biodegradability: The product is fully biodegradable and environmentally friendly.

    FAQ - Technical & Supply Chain

    • Q:

      Chemically, what constitutes the composition of Silk Amino Acids 99% CAS 96692-41-4?

      A: Silk Amino Acids (CAS 96692-41-4) are chemically characterized as the hydrolysis product of silk fibroin, resulting in a complex of free amino acids (primarily Glycine, Alanine, and Serine) and short peptides with a low molecular weight that allows for excellent transdermal and hair fiber penetration.
    • Q:

      Is this ingredient suitable for "repair" claims in hair care products?

      A: Yes, this material is typically applied in restructuring hair masks and conditioners because its small molecular size allows it to penetrate the hair shaft, filling voids in the cuticle and increasing tensile strength.
    Documents

    Documents and Product Support

    For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

    • COA for batch-based quality reference
    • TDS for key physical and chemical information
    • SDS / MSDS for handling, storage, and safety reference
    • Packing information for sample, trial, and bulk orders
    • Technical communication based on application and specification requirements
    Quotation

    Information to Confirm Before Quotation

    Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

    • Product name and CAS number
    • Application or intended end use
    • Required purity, grade, or specification
    • Sample quantity, trial order, or bulk demand
    • Preferred packing form or net weight
    • Destination country or port
    • Required documents or compliance expectations
    Storage & Handling

    Packaging, Storage, and Handling Notes

    Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

    Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

    Supply Support

    Sample, Bulk Order and Repeat Supply Support

    Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

    For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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    Amino Acid Derivative Cosmetic Humectant Hair Care Ingredient Protein Hydrolysate

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