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™ 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.

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.

Amitose™ 3LGA, "Ceramide Promoter", 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. In addition to providing excellent skin-moisture and inhibitory effect on melanin production, Amitose™ 3LGA improves skin barrier functions in an unprecedented way. Indeed, this complexe ascorbic acid derivative greatly increases ceramide synthesis which is one of the most important elements in the skin barrier mechanism. The increase in ceramide thickens the lamellar structure of the stratum corneum and greatly decreases transpidermal water loss. Furtermore, Amitose™ 3LGA also boosts the intracellular antioxidant system by removing reactive oxygen species (ROS) thus providing enhanced anti-pollution effect. The way this antioxidant mechanism works is unique to Amitose™ 3LGA and is highly effective even at low dosage. Lastly, we observed an inhibition of nerve fiber elongation which leads to a decrease in skin sensitivity. Amitose™ 3LGA can be used in gel serums and emulsions such as creams. This product is preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WJ-SP (Botanical Keratin) is powder hydrolyzed pea protein with conditioning efficacy. Pea protein amino acid composition is quite similar to keratin, so it is called botanical keratin. It possesses excellent moisturizing properties for both hair care and skin care and also repairs hair damage. This in non-GMO product which does not contained genetically modified pea and it is deemed not allergenic according to the Japanese Ministry of Health, Labor and Welfare. Promois™ WJ-SP (Botanical Keratin) 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.

Promois™ WR-SP is a hydrolyzed rice protein with conditioning efficacy. Rice protein provides excellent moisture because it contains a large proportion of acidic amino acids. The advantage of the rice protein in comparison to other vegetable proteins is the fact that they are adsorbed more easily to the hair and skin. Promois™ WR-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.

Amitose™ 2GA, "Moisturizing vitamin C", is a novel powder stable vitamin C derivative produced by binding Vitamin C (ascrobic acid) and glycerin using SEIWA KASEI's original technology. Besides the fact it can provide skin moisture and inhibit melanin production better than regular ascorbic acid derivatives, Amitose™ 2GA also improves skin feel and enhances collagen production. Lastly, unlike many acid ascorbic derivatives Amitose™ 2GA remains stable in a wide range of pH. This product is preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ SERICIN-N is hydrolyzed silk protein (sericin). Many of the amino acids of sericin have hydroxyl groups, more than 40% of total, which provides uncomparable moisturizing effect. Promois™ SERICIN-N is an organic ingredient certified 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.

Promois™ WS-HSP is a hydrolyzed soy protein with conditioning efficacy. Soy protein is distinct from animal proteins such as collagen and keratin in that, and it is composed of 30% glutamic acid and aspartic acid that possess particularly high moisturizing property. It also provides a smooth and pleasant texture and prevents unmanageable hair. Promois™ WS-HSP is an organic ingredient certified 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.

Promois™ SILK-700SP is powder 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. 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.

HAZUMI-HADA, "Anti-aging Collagen" is a collagen-derived ingedient, which boosts collagen production. In Japanese, HAZUMI-HADA means plump skin. Indeed, HAZUMI-HADA considerably promotes the production of collagen and as consequence improves the firmness of the skin. The collagen production is even further boosted when HAZUMI-HADA is combined with Vitamin C. It also improves activation of fibroblasts, the cells indispensable to skin collagen production. HAZUMI-HADA is best used a leave-on skin care formulation particularly with Vitamin C. This product is preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Amitose™ MGA, "Emulsifying 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. Amitose™ MGA provides skin moisture and inhibits melanin production far more effectively than most ascorbic acid derivatives. Most particularly, Amitose™ MGA is amphilic and non-ionic and thus has oil-in-water emulsifying properties. It can be used in emulsions, gels and creams and remains stable over time. It also allows formulators to decrease or even remove the amount of surfactant used in the emulsion formulae. Lastly, Amitose™ MGA demonstrates anti-bacterial properties, a unique characteristic for a vitamin C derivative. This product is preservative free. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WK-Q is a cationized derivative of hydrolyzed keratin.Thanks to its cationic character, it can adsorb to the damaged part of the hair, repair very effectively and improve texture. It also has anti-static properties. Keratin is one of the structural proteins that compose the hair, the nails and the stratum corneum of the skin. 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. It is developed and manufactured in Japan by SEIWA KASEI.

Silasoma™ SP is an aqueous dispersion of encapsulated UV absorbers (60% as active component). This product is an average diameter of 2 micrometers microcapsule using amino acid as a wall material. And encapsulation eminently reduces penetration of UV absorbers into skin. It is suitable for sunscreen for sensitive skin or baby care. Encapsulating the UV absorbers provides a soft and light after-feel and allows for surfactant-free and safer sun protection formulations. Silasoma™ SP microcapsules contain Ethylhexyl Methoxycinnamate and Dimethylamino Hydroxybenzoyl Hexyl Benzoate. It is developed and manufactured in Japan by SEIWA KASEI.

Promois™ WS-HQF is a cationized derivative of hydrolyzed soy protein. Thanks to its cationic character, it can adsorb to the damaged part of the hair, repair very effectively and improve texture. It also has anti-static properties. Soy protein is distinct from animal proteins such as collagen and keratin in that it is composed of 30% glutamic acid and aspartic acid that possess particularly high moisturizing property. It also provides a smooth and pleasant texture and prevents unmanageable hair. 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.