Definitions of the product:
The product silk cosmetics raw materials is the water soluble mixing amino
acid obtained after hydrolysis of Silk fibroin. The average molecular weight is about 90 and the product is also called as “Silk 90”. The product is white powder with pH value between 5 to 7 and positive ninhydrin reaction.
Items Index (Food Grade) Index (Common Grade)
Appearance White or jasmine powder, soluble in water, sweet taste. White or jasmine powder, soluble in water, sweet taste.
Differentiation positive ninhydrin reaction positive ninhydrin reaction
Total nitrogen ≥15% ≥14.5%
Weight Loss on drying ≤2.5% ≤4%
Residue on ignition ≤3.0% ≤5%
pH value 5.0-7.0 5.0-7.0
Total Glycin, L-alanine, L-serine ≥85% ≥82%
Heavy Metal ( as Pb) ≤5ppm ≤10ppm
As ≤0.5ppm ≤1ppm
Bacteria ≤100 ≤100
Coli group (MPN)（pieces/100g） ≤30 ≤30
Pathogenic Bacteria No detection No detection
1. With silk from feed silkworm as raw materials, refined through biological process to get the mixed amino acid cosmetcis raw materials (silk essence), more than 85% of whose content are alanine, serine and glycin, is a functionally prominent nutrient with higher nutritional value.
2. Glycin and serine can not only be used as the essential materials of synthesizing protein in organism, but also be used as the predecessor of synthesizing the glutathione (GSH, SSG), which has certain preventive actions on heart disease and cancer. Meanwhile, the glycin also has the detoxication effects for some aromatics which can cause cancer. The rich alanine also helps promoting the metabolism of alcohol in human body and protecting liver. Moreover, tyrosine has obvious effect on preventing the old from Alzheimer disease.
3. Silk raw cosmetcis materials is very easy to permeate the derma layer of skin and get absorbed, nurturing skin as well. Due to its action in the enzyme metabolism, silk amino acid can keep and adjust moisture, prevent skin from ultraviolet radiation, restrain splash generation, facilitate anti-aging for skin.
Contact Name: William Yan
Company Name: Huzhou Xintiansi Bio-tech Co., Ltd.
Street Address: No.487 Tianheng Road,
Chuangye Ave, Economic Development Zone,
Hzhou, Zhejiang, China.
Member name: hzxts
Member Since: 17 August 2009
Total Leads: 22 hzxts Import Export Business Leads
Business focus: Silk Protein, Silk Amino Acids, Silk Peptide, Silk Powder, Sericin Powder, Silkworm Pupa Amino Acids
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