Products

Amitose™ HGA, "Lightening vitamin C", is a novel stable vitamin C derivative produced by binding Vitamin C (ascrobic acid), glycerin and an alkyl group together using SEIWA KASEI's original technology. It provides excellent skin moisture but particularly excels at skin lightening. In fact, Amitose™ HGA skin lightening mechanism is the world first of its kind. First, it inhibits melanin synthesis more effectively than most ascorbic acid derivatives. Secondly, Amitose™ HGA inhibits and reverses melanin transport. Lastly, melanin is degraded by autophagy which won the 2016 Nobel Prize. Those mechanism leads to consequently supress dark spots, a truly unique mechanism in Vitamin C derivatives. Amitose™ HGA can be used in a large variety of formulae : skin toners, transparent gel-serums and emulsions such as creams. This product is preservative free water-soluble ingredient. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WK-HSIGF is a silylated derivative type of hydrolyzed keratin. It protects and repairs hair, and improves its texture by a heat enhancing effect that results in the formation of a film on the hair in response to heat from hair dryers or hair ironing. Keratin is one of the structural proteins composing the stratum corneum, hair, and nails. It makes up 80% of human hair. About its amino acid composition, it must be noted that keratin has plenty of cystine, the amino acid that forms a bond between the helix of the protein and thus provides physical resistance to the hair structure as well as moisture. This is why it is important to supply keratin regularly through hair care products. Promois™ series is a range of peptides and derivatives obtained through hydrolysis of natural proteins. There are also products with different preservatives. It is developed and manufactured in Japan by SEIWA KASEI.

Vegetamide™ 18MEA-R, "Plant-derived Liquid Cuticle" has aliphatic cationic compounds of rice peptides with hair conditioning efficacy. The F-Layer, which main component is called 18-MEA, is the barrier structure of hair cuticles, but it can be stripped off due to hair damage. Because Vegetamide™'s structure mimics the structure of the F-Layer, it can repair and restore the hair cuticles to a healthy state and improve its texture. This product is preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WG-SP is powder hydrolyzed wheat protein with conditioning efficacy. Wheat protein is rich in acidic amino acids and particuarly in glutaminc acid which provides moisturizing effect. It also has a slight amount of cystine, the amino acid tht brings strength to the hair. Lastly,compared with other plant proteins, wheat proteins tend to have a lighter texture. Promois™ WG-SP is an organic ingredient certified ECOCERT and COSMOS. This product is preservative free powder type. Promois™ series is a range of peptides and derivatives obtained through hydrolysis of natural proteins. It is developed and manufactured in Japan by SEIWA KASEI.

Solublekeratin SKSP is a water-soluble keratin polymer of natural wool origin. Keratin is the one of main components of stratum corneum which protects skin against external stimulations (UV, Chemical) and keeps water in epidermis. Soluble Keratin SKSP improves barrier function and provides smoothness as well. It is also suitable for nail care formulations because its main component is keratin. This product is preservative free powder type. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ SILK-1000F is hydrolyzed silk protein with hair conditioning efficacy. Silk protein is formed of two proteins: fibroin and sericin. Fibroin has a unique amino acid composition. It is rich in glycine, alanine and serine which have small molecular weight and simple chemical structure. This composition is known to form a sheet structure to which is associated the comfortable touch of silk. Many of the amino acids of sericin have hydroxyl groups which provides uncomparable moisturizing effect. Promois™ series is a range of peptides and derivatives obtained through hydrolysis of natural proteins. There are also products with different preservatives. It is developed and manufactured in Japan by SEIWA KASEI.

Protesil™ LH is a novel hybrid polymer created from the fusion of silk peptides and silicone. It can be used as a multi-functional hair conditioning ingredient. It has excellent adsorption to hair and forms a thin film on the surface of hair, which is glossy, long-lasting, and water-resistant. This has various effects such as repairing, moisturizing, color-protection, shine and anti-static effect. This product is preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Amitose™ DGA, "Rich-Moisturizing vitamin C", is a novel stable vitamin C derivative produced by binding Vitamin C (ascorbic acid) and two glyceryl groups using SEIWA KASEI's original technology. In addition to inhibiting melanin production it provides ultra moisture to the skin as it strenghtens the cornified cell envelope in the stratum corneum. As a non-ionic ingredient it can be used easily in gel and emuslion formulae such as creams but it is also notably recommended for transparent gel-serums, Vitamin C-rich serum and skin toners. This product is preservative free water-soluble ingredient. It is developed and manufactured in Japan by SEIWA KASEI.

Vegetamide™ 18MEA-NJS, "Plant-derived Liquid Cuticle" has aliphatic cationic compounds of pea peptides with hair conditioning efficacy. The F-Layer, which main component is called 18-MEA, is the barrier structure of hair cuticles, but it can be stripped off due to hair damage. Because Vegetamide™'s structure mimics the structure of the F-Layer, it can repair and restore the hair cuticles to a healthy state and improve its texture. This product is the preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WJ is hydrolyzed pea protein with conditioning efficacy. Pea protein amino acid composition is quite similar to keratin. It possesses excellent moisturizing properties for both hair care and skin care and also repairs hair damage. This is non-GMO product which does not contained genetically modified pea and it is not allergenic according to the Japanese Ministry of Health, Labor and Welfare. Promois™ series is a range of peptides and derivatives obtained through hydrolysis of natural proteins. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WG-SIG is a silylated derivative type of hydrolyzed wheat protein. It protects and repairs hair, and improves its texture by a heat enhancing effect that results in the formation of a film on the hair in response to heat from hair dryers or hair ironing. Wheat protein is rich in acidic amino acids and particuarly in glutaminc acid which provide moisturizing effect. It also has a slight amount of cystine, the amino acid tht brings strength to the hair. Lastly,compared with other plant proteins, wheat proteins tend to have a lighter texture. Promois™ series is a range of peptides and derivatives obtained through hydrolysis of natural proteins. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ S-700SIGF is a silylated derivative of hydrolyzed silk protein. It protects and repairs hair, and improves its texture by a heat enhancing effect that results in the formation of a film on the hair in response to heat from hair dryers or hair ironing. Silk protein is formed of two proteins: fibroin and sericin. Fibroin has a unique amino acid composition. It is rich in glycine, alanine and serine which have small molecular weight and simple chemical structure. This composition is known to form a sheet structure to which is associated the comfortable touch of silk. Many of the amino acids of sericin have hydroxyl groups which provides uncomparable moisturizing effect. Promois™ series is a range of peptides and derivatives obtained through hydrolysis of natural proteins. There are also products with different preservatives. It is developed and manufactured in Japan by SEIWA KASEI.