INCI Name: SILK POWDER

Molecular weight: 500-30000

PH: 4.5.0-6.5

Total nitrogen: ≥14.5

Appearance: White powder or Light yellow liquid

Silk peptide is a more refined product,its particle size can make it penetrate into the skin and hair,so that it has a higher added value,and can improve the appearance.After drying and turning into a protective crystalline film (less viscous than collagen or keratin),the gloss,elasticity and smoothness imparted to the hair become obvious.After the silk peptide penetrates the skin,it helps to retain moisture while providing an attractive luster.Hydrolyzed silk peptides can be used in a variety of products,such as shampoos,conditioners,hair care,shower gels,body lotions,cleansers,toners,makeup foundations,lipsticks,mascaras,and color cosmetics.

★What is silk peptide? 

Silk peptides are a water-soluble mixture of short-chain to medium-chain peptides obtained by hydrolyzing natural silk fibroin. 

★What are the main benefits of Sipei in skincare? 

It possesses strong water-binding capacity, helping the skin retain moisture, reduce dryness, and maintain a hydrated state. 

It forms a lightweight, breathable film on the skin surface, enhancing its softness and smoothness.  

Its amino acid composition closely matches the skin's NMF profile, helping to maintain the skin barrier's comfort and reduce tightness. 

Furthermore, certain specific serine peptides (such as the 27P peptide) can promote the synthesis and orderly deposition of type I collagen, 

thereby achieving anti-aging effects without inducing inflammation or fibrosis. 

★Can serine peptides be used in hair care products? 

Yes, serine is highly suitable for hair care.  It can bind to damaged areas of the hair shaft, repair hair damage, reduce roughness, and improve hair manageability. 

★What is the recommended addition concentration of Sipei in different products? 

Daily skincare products (creams, lotions): 0.5%–2.0%;

Sunscreen product: 0.5%–1.0%;

Shaving products: 1.0%–2.0%;

Dry skin products: 1.0%–2.0%. 

Hair care products: 0.25%–0.5%.

MOQ: 200grams

Package: 200grams/bottle, 500grams/bottle, 1kg/bag, 5kg/bag

Storage：Store in a cool, dry place and keep tightly sealed.