Iwase Cosfa Co., Ltd.

Yuzu (Citrus junos) is a Japanese citrus with a distinctive aromatic profile. Kōchi prefecture is Japan's largest producer. The peel yields essential oil dominated by d-limonene, while aqueous extracts carry flavonoids and citric acid. Used in fragrance, bath products, and skin-conditioning toners.

Camellia oil is a cold-pressed or solvent-refined plant oil extracted from the seeds of Camellia japonica, a species native to Japan, Korea, and southern China. Used in Japan for over a thousand years for hair and skin care. Traditional production centers include the Goto Islands in Nagasaki and Izu Oshima off Tokyo. Rich in oleic acid with a light, non-greasy feel.

Rice bran extract is derived from the pericarp and germ fractions of milled Oryza sativa. Long used in Japanese household skincare via togijiru (rice-rinsing water) and nukabukuro (rice-bran poultices). The extract concentrates gamma-oryzanol, ferulic acid, tocopherols, and B-vitamins, and pairs well with other rice-derived materials.

Sake lees (酒粕, sakekasu) is the residual solid obtained after pressing fermented rice mash in sake brewing. Used in cosmetics for amino acids, peptides, and yeast-derived bioactives. Major sake-producing regions (Niigata, Nada, Fushimi, Saijō) supply upstream material. Well-suited to sustainability narratives as an upcycled brewing byproduct.

Galactomyces ferment filtrate is the clear liquid obtained from the culture of Galactomyces yeast. Studied for skin-conditioning and moisturizing effects. Japanese manufacturers produce the ingredient under INCI-recognized generic names; this platform lists only generic producers, not proprietary brand preparations.

Rice-derived glucosylceramide is a sphingolipid extracted from rice germ or rice bran, used in both ingestible supplements and topical cosmetics. Japanese FFC notifications cite effects on skin moisture retention. Production leverages Japan's rice-milling byproducts, aligning with sustainability positioning.

Astaxanthin is a carotenoid pigment produced primarily by microalgae (Haematococcus pluvialis), known for strong antioxidant capacity. Japanese production pioneered by Fuji Chemical Industry and ENEOS uses closed-system microalgae cultivation. Multiple Japanese FFC notifications cite astaxanthin for eye health, skin health, and antioxidant support.

Hinoki (Chamaecyparis obtusa) is a coniferous tree endemic to Japan and Taiwan, famous for use in Shinto shrine construction and onsen bath fittings. The essential oil is steam-distilled from hinoki wood, leaves, or twigs. Dominant compounds include hinokitiol, α-pinene, and sesquiterpenes. Distinct from hiba (Thujopsis dolabrata).