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SEIWA KASEI CO., LTD.

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Japanese time-tested manufacturer of innovative cosmetic ingredients, SEIWA KASEI offers high-performance products based on peptides and/or amino acids and formulations with unique marketing claims and relevant data. In addition to the core products "Promois" - variants of hydrolyzed proteins and their derivatives from natural resources -, many functional ingredients are developed with our technology, such as "Silasoma" - encapsulated UV-filters for sensitive skin and baby -, "Protesil" - multi-functional hybrid polymers with silky texture, hair colour protection -, "Amitose" - glycerin derivatives with arginine or ascorbic acid with moisturizing effect and whitening effect - and "Vegetamide" -pseudo-F layer of hair cuticle with selective repair.
5 Results
Amitose 2GA SEIWA KASEI CO., LTD.
  • INCI Name:
    Glyceryl Ascorbate
Amitose 2GA, "Moisturizing vitamin C", is a novel powder stable vitamin C derivative produced by binding Vitamin C (ascorbic acid) and glycerin using SEIWA KASEI's original technology. Besides the fact it can provide skin moisture and inhibit melanin prod...view more Amitose 2GA, "Moisturizing vitamin C", is a novel powder stable vitamin C derivative produced by binding Vitamin C (ascorbic 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. view less
Compliance Highlights Unavailable
Amitose 3GA SEIWA KASEI CO., LTD.
  • INCI Name:
    3-Glyceryl Ascorbate (and) Glycerin (and) Water
Amitose 3GA, "Anti-aging vitamin C", is a novel stable vitamin C derivative produced by binding Vitamin C (ascorbic acid) and glycerin using SEIWA KASEI's original technology. In addition to providing skin moisture and inhibiting melanin production, Amit...view more Amitose 3GA, "Anti-aging vitamin C", is a novel stable vitamin C derivative produced by binding Vitamin C (ascorbic acid) and glycerin using SEIWA KASEI's original technology. In addition to providing skin moisture and inhibiting melanin production, Amitose 3GA has an excellent anti-oxydant effect. In fact, Amitose 3GA acts inside the cell where it decreases oxydanting agents, the reactive oxygen species (ROS). Its intracellular oxydant effect and cost effectiveness make it perfect for serum, high concentration formulae, anti-aging care and many other formulae. This product is preservative free water-soluble ingredient. It is developed and manufactured in Japan by SEIWA KASEI. view less
Compliance Highlights Unavailable
Amitose 3LGA SEIWA KASEI CO., LTD.
  • INCI Name:
    3-Laurylglyceryl Ascorbate (and) Butylene Glycol
Amitose 3LGA, "Ceramide Promoter", is a novel stable Vitamin C derivative produced by binding Vitamin C (ascorbic acid), glycerin and an alkyl group together using SEIWA KASEI's original technology. In addition to providing excellent skin-moisture and inh...view more Amitose 3LGA, "Ceramide Promoter", is a novel stable Vitamin C derivative produced by binding Vitamin C (ascorbic 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. view less
Compliance Highlights Unavailable
Amitose™ DGA SEIWA KASEI CO., LTD.
  • INCI Name:
    Bis-Glyceryl Ascorbate (and) Glycerin (and) Water
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 ult...view more 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. view less
Compliance Highlights Unavailable
Amitose HGA SEIWA KASEI CO., LTD.
  • INCI Name:
    Hexyl 3-Glyceryl Ascorbate (and) Glycerin (and) Water
Amitose HGA, "Lightening vitamin C", is a novel stable vitamin C derivative produced by binding Vitamin C (ascorbic acid), glycerin and an alkyl group together using SEIWA KASEI's original technology. It provides excellent skin moisture but particularly e...view more Amitose HGA, "Lightening vitamin C", is a novel stable vitamin C derivative produced by binding Vitamin C (ascorbic 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. view less
Compliance Highlights Unavailable