Ajinomoto Co., Ltd.

Gaku Hattori

Masahiro Ino

Hiroji Ishii

Fumie Honkawa

The present invention provides a method of producing an aqueous solution containing an N&#x2014;Cacyl acidic amino acid and/or a salt thereof and having pH 8.4-9.5, including the first step for reacting an acidic amino acid and/or a salt thereof with a Cfatty acid chloride in a water solvent at pH 10-13 to form an N&#x2014;Cacyl acidic amino acid salt, and the second step for adjusting the pH of the aqueous solution after the first step to 8.4-9.5.

Aqueous solution containing n-long-chain acyl acidic amino acid and/or salt thereof, and method for producing same

Moisturizers including an acyl neutral amino acid having an acyl group with a carbon atom number of 2 to 18, and salts thereof, and cosmetics containing such a moisturizer promote the production of moisturizing-related proteins, such as filaggrin, involucrin, transglutaminase 1, keratin 10, and loricrin, and provide a moisturizing effect.

Moisturizer and cosmetic including the same

Aqueous solution containing N-long-chain acyl acidic amino acid and/or salt thereof, and method for producing same

The present invention provides a novel gellant capable of favorably gelatinizing an oily base. The present invention relates to a gellant for an oily base, which contains the peptide compound represented by the formula (1), and further relates to a gelatinous composition containing (A) the gellant for an oily base, and (B) an oily base. Formula (1): wherein the symbols are as described in the DESCRIPTION.

Gellant

Provided is a gelling agent containing N-acyl acidic amino acid dialkylamide having a DL form ratio (D form/L form (weight/weight)) of 5/95-20/80 or 80/20-95/5, and using the gelling agent, a gel composition, particularly a rod-like gel composition, superior in transparency and strength, and superior in compatibility and spreadability when applied to the skin, hair and the like is provided.

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Kawasaki, Japan

Gaku Hattori