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Sericin Powder is the colloid protein wrapping in the outer layer of silk. It is a kind of yellow powder and is soluble in water, whose ninhydrin reaction is postive.

Product identification

Product name                    Sericin Powder

INCI name                        Sericin

Composition                      Hydrolyzed Sericin

CAS No.                            60650-89-7/60650-88-6

Appearance                                                     White or light yellow powder
Nitrogen, %                                                     ≥14.00
Polarity Collateral Amino Acid Proportion, %       ≥70.00
Loss on drying, %                                            ≤6.00
Residue on ignition, %                                     ≤4.00
Heavy Metal (as Pb), mg/kg                              ≤10.00
As, mg/kg                                                       ≤1.00
PH Value                                                         5.0 ~ 7.0
Coli group, MPN/100g                                      ≤30

Pathogenic Bacteria                                         Can’t be detected

Application

1) Facial masks, eye masks, facial cream, skin whitening, essence and hand cream

2) Shampoo and hair care products

3) Skin-friendly products for females

4) Infant diapers

5) Surfactants

6) Medical applicaton

Suggested use concentrations

Daily skin care -------------------------  0.5~2.0%

Shaving ---------------------------------  0.5~1.5%

Dry skin ---------------------------------  1.0~1.5%

Oily skin --------------------------------- 0.5~1.0%

Baby skin ------------------------------- 0.25~0.5%

Hair care -------------------------------- 0.25~0.5%

1) 1kg/double polyethylene bag;

2) 20kg/fiber drum (40cmx40cmx60cm)