Sericin

The biopolymer SERICIN has a strong affinity to keratin. It forms a moisturizing, semiocclusive, protective, anti-wrinkle film on the skin surface, imparting an immediate, long lasting, smooth, silky feeling.

Product Description

Sericin is a high molecular weight, water-soluble glycoprotein isolated from silk. The raw material for the manufacture of Sericin is a top-quality silk grège or raw silk yarn, obtained exclusively from the domesticated mulberry silkworm (Bombyx mori). The manufacturing process, which is carried out in accordance with GMP standards, is carefully designed to preserve this versatile biopolymer in its native state as far as possible. One characteristic feature of Sericin is its opalescence, which results from its light scattering effect. Sericin has a unique affinity with other proteins which allows it to bind very effectively to the keratin of skin and hair, to form a multifunctional protective film.

Background

The silk spinnerets of Bombyx mori produce a delicate twin thread of silk and surround it with a protective cover of sericin during the spinning procedure. This principle, designed by mother nature and used successfully for millions of years, is now being copied and perfected to provide an innovative active ingredient for the cosmetic industry. Sericin is in fact a unique biopolymer with a unique structure leading to unique performance. The high hydroxy amino acid content of Sericin (approx. 46%) is of particular importance for the water-binding capacity which regulates the skin's moisture content. On the other hand, it has a unique carbohydrate moiety and a unique repetitive amino acid sequence which give Sericin its high affinity for proteins resulting in a tightening, anti-wrinkle effect. The uniform film formed after the application of Sericin results from its very high molecular weight. This substantive semiocclusive film persists even after washing, and protects the skin against harmful environmental influences. The Sericin film leaves the skin with a smooth, silky feeling and substantiates several appropriate cosmetic effects. Its versatility makes Sericin a very valuable natural ingredient for a wide range of cosmetic products.

Dosage

For skin care preparations, we recommend the addition of 3 to 7% Sericin. Basic Guide Formulations are available.

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